diff --git a/README.md b/README.md
index 8a99bf3..9572967 100644
--- a/README.md
+++ b/README.md
@@ -58,10 +58,10 @@ $ pip install pybibget
     URL = "https://doi.org/10.1109/TIT.2006.885507"
 }
 
-@article{math/0211159,
+@unpublished{math/0211159,
     author = "Perelman, Grisha",
     title = "{The} entropy formula for the {Ricci} flow and its geometric applications",
-    journal = "preprint",
+    note = "Preprint",
     year = "2002",
     eprint = "math/0211159",
     archiveprefix = "arXiv"
@@ -114,7 +114,6 @@ With the option `-f filename` the result can be *appended* to any given file dir
 % pybibget MR0026286 10.1109/TIT.2006.885507 math/0211159 PMID:271968 10.1109/CVPR.2016.90 hep-th/9711200 -f bibliography.bib
 Succesfully appended 6 BibTeX entries to bibliography.bib
 ``` 
-the result can be *appended* to a given `.bib` file.
 
 ### TeX File Parsing
 
diff --git a/dist/.DS_Store b/dist/.DS_Store
deleted file mode 100644
index 3a3f18a..0000000
Binary files a/dist/.DS_Store and /dev/null differ
diff --git a/dist/pybibget-0.0.1-py3-none-any.whl b/dist/pybibget-0.0.1-py3-none-any.whl
index 3d7cc7f..b853f33 100644
Binary files a/dist/pybibget-0.0.1-py3-none-any.whl and b/dist/pybibget-0.0.1-py3-none-any.whl differ
diff --git a/dist/pybibget-0.0.1.tar.gz b/dist/pybibget-0.0.1.tar.gz
index 0838fa4..4409db1 100644
Binary files a/dist/pybibget-0.0.1.tar.gz and b/dist/pybibget-0.0.1.tar.gz differ
diff --git a/dist/pybibget-0.0.1/.DS_Store b/dist/pybibget-0.0.1/.DS_Store
deleted file mode 100644
index aa337f9..0000000
Binary files a/dist/pybibget-0.0.1/.DS_Store and /dev/null differ
diff --git a/dist/pybibget-0.0.1/LICENSE b/dist/pybibget-0.0.1/LICENSE
deleted file mode 100644
index 1e376aa..0000000
--- a/dist/pybibget-0.0.1/LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2023 wirhabenzeit
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/dist/pybibget-0.0.1/PKG-INFO b/dist/pybibget-0.0.1/PKG-INFO
deleted file mode 100644
index 48b2871..0000000
--- a/dist/pybibget-0.0.1/PKG-INFO
+++ /dev/null
@@ -1,5 +0,0 @@
-Metadata-Version: 2.1
-Name: pybibget
-Version: 0.0.1
-Requires-Python: >=3.6
-License-File: LICENSE
diff --git a/dist/pybibget-0.0.1/README.md b/dist/pybibget-0.0.1/README.md
deleted file mode 100644
index cfec149..0000000
--- a/dist/pybibget-0.0.1/README.md
+++ /dev/null
@@ -1,2 +0,0 @@
-# pybibget
-Python Module to automatically retrieve BibTeX citations from MathSciNet, arXiv and Pubmed
diff --git a/dist/pybibget-0.0.1/pybibget.egg-info/PKG-INFO b/dist/pybibget-0.0.1/pybibget.egg-info/PKG-INFO
deleted file mode 100644
index 48b2871..0000000
--- a/dist/pybibget-0.0.1/pybibget.egg-info/PKG-INFO
+++ /dev/null
@@ -1,5 +0,0 @@
-Metadata-Version: 2.1
-Name: pybibget
-Version: 0.0.1
-Requires-Python: >=3.6
-License-File: LICENSE
diff --git a/dist/pybibget-0.0.1/pybibget.egg-info/SOURCES.txt b/dist/pybibget-0.0.1/pybibget.egg-info/SOURCES.txt
deleted file mode 100644
index 3bb9a86..0000000
--- a/dist/pybibget-0.0.1/pybibget.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-LICENSE
-README.md
-pyproject.toml
-setup.cfg
-setup.py
-pybibget/bibentry.py
-pybibget/pybibget.py
-pybibget.egg-info/PKG-INFO
-pybibget.egg-info/SOURCES.txt
-pybibget.egg-info/dependency_links.txt
-pybibget.egg-info/entry_points.txt
-pybibget.egg-info/requires.txt
-pybibget.egg-info/top_level.txt
\ No newline at end of file
diff --git a/dist/pybibget-0.0.1/pybibget.egg-info/dependency_links.txt b/dist/pybibget-0.0.1/pybibget.egg-info/dependency_links.txt
deleted file mode 100644
index 8b13789..0000000
--- a/dist/pybibget-0.0.1/pybibget.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/dist/pybibget-0.0.1/pybibget.egg-info/entry_points.txt b/dist/pybibget-0.0.1/pybibget.egg-info/entry_points.txt
deleted file mode 100644
index 2acd312..0000000
--- a/dist/pybibget-0.0.1/pybibget.egg-info/entry_points.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-[console_scripts]
-pybibget = pybibget.pybibget:pybibget
diff --git a/dist/pybibget-0.0.1/pybibget.egg-info/requires.txt b/dist/pybibget-0.0.1/pybibget.egg-info/requires.txt
deleted file mode 100644
index 3f4498a..0000000
--- a/dist/pybibget-0.0.1/pybibget.egg-info/requires.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-requests
-pybtex
-lxml
-pylatexenc
diff --git a/dist/pybibget-0.0.1/pybibget.egg-info/top_level.txt b/dist/pybibget-0.0.1/pybibget.egg-info/top_level.txt
deleted file mode 100644
index afc7bad..0000000
--- a/dist/pybibget-0.0.1/pybibget.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
-pybibget
diff --git a/dist/pybibget-0.0.1/pybibget/bibentry.py b/dist/pybibget-0.0.1/pybibget/bibentry.py
deleted file mode 100644
index 75c8e5e..0000000
--- a/dist/pybibget-0.0.1/pybibget/bibentry.py
+++ /dev/null
@@ -1,110 +0,0 @@
-from lxml import html, etree
-import requests,re
-from pybtex.database import Entry, Person, parse_string, parse_bytes
-from pylatexenc.latexencode import unicode_to_latex
-from pylatexenc.latex2text import LatexNodes2Text
-atom_namespace = 'http://www.w3.org/2005/Atom'
-arxiv_namespace = 'http://arxiv.org/schemas/atom'
-re_mathscinet = r'MR\d{4,10}'
-re_pubmed = r'PMID:\d{4,10}'
-re_doi = r'10\.\d{4,9}\/[-._;()/:A-Za-z0-9]+'
-re_arxiv_old = r'\b[a-zA-Z\-\.]{2,10}\/\d{7}(?:v\d)?\b'
-re_arxiv_new = r'\b\d{4}\.\d{4,5}(?:v\d)?\b'
-
-
-def getbibentry(id,verbose=False):
-    if re.match(re_mathscinet,id):
-        if verbose:
-            print(f"Looking for MathSciNet key {id}...",end=" ")
-        return get_mathscinet_bibentry(id=id,verbose=verbose)
-    elif re.match(re_pubmed,id):
-        if verbose:
-            print(f"Looking for PubMed key {id}...",end=" ")
-    elif re.match(re_arxiv_old, id) or re.match(re_arxiv_new, id):
-        if verbose:
-            print(f"Looking for arXiv key {id}...",end=" ")
-        return get_arxiv_bibentry(id,verbose=verbose)
-    elif re.match("",id):
-        try:
-            if verbose:
-                print(f"Looking for {id} on MathSciNet...",end=" ")
-            return get_mathscinet_bibentry(doi=id,verbose=verbose)
-        except ValueError:
-            if verbose:
-                print(f"Looking for {id} on doi.org...",end=" ")
-            return get_doi_bibentry(id,verbose=verbose)
-    else:
-        raise ValueError(f"Invalid citation key {id}!\n")
-
-def get_mathscinet_bibentry(id=None,doi=None,verbose=False):
-    if id:
-        url = "https://mathscinet.ams.org/mathscinet/search/publications.html?fmt=bibtex&pg1=MR&s1=" + id[2:]
-    elif doi:
-        url = "https://mathscinet.ams.org/mathscinet/search/publications.html?fmt=bibtex&pg1=DOI&s1=" + doi
-    page = requests.get(url)
-    tree = html.fromstring(page.content)
-    if bibstrings := tree.xpath('//pre/text()'):
-        if verbose:
-            print("Success!")
-        bibstr=bibstrings[0]
-    else:
-        raise ValueError(f"Not found! Please check the citation key and whether you have access to MathSciNet.")
-    entries = parse_string(bibstr,'bibtex').entries
-    univ_id= list(entries.keys())[0]
-    return entries[univ_id]
-
-def get_doi_bibentry(id,verbose=False):
-    url = "https://doi.org/" + id
-    headers = { 'Accept': 'application/x-bibtex; charset=utf-8' }
-    page = requests.get(url,headers=headers)
-    entries = parse_bytes(page.content,'bibtex').entries
-    if len(entries) == 1:
-        if verbose:
-            print("Success!")
-        return sanitize_entry(list(entries.values())[0])
-    else:
-        raise ValueError(f"Not found! Please check the citation key and whether you have access to doi.org.")
-
-def get_arxiv_bibentry(id,verbose=False):
-    url = "http://export.arxiv.org/api/query?id_list=" + id
-    page = requests.get(url)
-    tree = etree.fromstring(page.content)
-    if doi := tree.xpath("//a:entry/b:doi",namespaces={ 'a': atom_namespace,'b': arxiv_namespace }):
-        if verbose:
-            print("Detected DOI in arXiv record...",end=" ")
-        bibentry = getbibentry(doi[0].text,verbose=verbose)
-    elif title := tree.xpath("//a:entry/a:title",namespaces={ 'a': atom_namespace }):
-        if verbose:
-            print("Success!")
-        fields = [("TITLE", title[0].text)]
-        if journal := tree.xpath("//a:entry/a:journal",namespaces={ 'a': atom_namespace }):
-            fields += [("JOURNAL",journal[0].text)]
-        else:
-            fields += [("JOURNAL","preprint")]
-        fields += [("YEAR", tree.xpath("//a:entry/a:published",namespaces={ 'a':atom_namespace })[0].text[:4])]
-        bibentry = Entry("article", fields=fields)
-        bibentry.persons["AUTHOR"] = [Person(author.text) for author in tree.xpath("//a:entry/a:author/a:name",namespaces={ 'a': atom_namespace })]
-        bibentry = sanitize_entry(bibentry)
-    else:
-        raise ValueError(f"Could not find citation for {id}. Please check the citation key and whether you have access to arXiv.")
-    bibentry.fields["EPRINT"] = id
-    bibentry.fields["ARCHIVEPREFIX"] = "arXiv"
-    return bibentry 
- 
-
-def sanitize_entry(entry):
-    entry.fields["TITLE"] = sanitize_string(entry.fields["TITLE"],title=True)
-    for author in entry.persons["AUTHOR"]:
-        author.first_names = [sanitize_string(name) for name in author.first_names]
-        author.last_names = [sanitize_string(name) for name in author.last_names]
-    if "month" in entry.fields:
-        entry.fields.pop("month")
-    return entry
-
-def sanitize_string(string,title=False):
-    string = string.replace("\n", "").replace("\t", "")
-    string = LatexNodes2Text().latex_to_text(string)
-    string=unicode_to_latex(string)
-    if title:
-        string = re.sub(r'\b([A-Z].*?)\b',r'{\1}',string)
-    return string
\ No newline at end of file
diff --git a/dist/pybibget-0.0.1/pybibget/pybibget.py b/dist/pybibget-0.0.1/pybibget/pybibget.py
deleted file mode 100644
index 97f2f17..0000000
--- a/dist/pybibget-0.0.1/pybibget/pybibget.py
+++ /dev/null
@@ -1,25 +0,0 @@
-import argparse, re
-import bibentry
-import pybtex.database
-
-def pybibget():
-    parser = argparse.ArgumentParser(prog ='pybibget',description ='Command line utility to automatically retrieve BibTeX citations from MathSciNet, arXiv and PubMed')
-  
-    parser.add_argument('keys', type = str, metavar ='citekeys', nargs='*',help ='MathSciNet (MRxxxxx), arXiv (2301.xxxxx) or PubMed (PMID:xxxxxxxx) citation keys (separated by spaces)')
-    parser.add_argument('-v','--verbose',action='store_true',help='verbose output' )
-    
-    args = parser.parse_args()
-  
-    if not args.keys:
-        parser.print_help()
-        exit(1)
-    bib_data = pybtex.database.BibliographyData()
-    for key in args.keys:
-        try:
-            bib_data.entries[key] = bibentry.getbibentry(key,verbose=args.verbose)
-        except ValueError as e:
-            print(e)
-    print(bib_data.to_string('bibtex'))
-
-if __name__ == '__main__':
-    pybibget()
\ No newline at end of file
diff --git a/dist/pybibget-0.0.1/pyproject.toml b/dist/pybibget-0.0.1/pyproject.toml
deleted file mode 100644
index 5f8f5e3..0000000
--- a/dist/pybibget-0.0.1/pyproject.toml
+++ /dev/null
@@ -1,3 +0,0 @@
-[build-system]
-build-backend = "setuptools.build_meta"
-requires = ["setuptools", "wheel"]
\ No newline at end of file
diff --git a/dist/pybibget-0.0.1/setup.cfg b/dist/pybibget-0.0.1/setup.cfg
deleted file mode 100644
index 065c1d8..0000000
--- a/dist/pybibget-0.0.1/setup.cfg
+++ /dev/null
@@ -1,23 +0,0 @@
-[metadata]
-name = pybibget
-version = 0.0.1
-
-[options]
-include_package_data = True
-packages = 
-	pybibget
-install_requires = 
-	requests
-	pybtex
-	lxml
-	pylatexenc
-python_requires = >=3.6
-
-[options.entry_points]
-console_scripts = 
-	pybibget = pybibget.pybibget:pybibget
-
-[egg_info]
-tag_build = 
-tag_date = 0
-
diff --git a/dist/pybibget-0.0.1/setup.py b/dist/pybibget-0.0.1/setup.py
deleted file mode 100644
index 6a9e5ae..0000000
--- a/dist/pybibget-0.0.1/setup.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from setuptools import setup
- 
-setup()
\ No newline at end of file
diff --git a/pybibget.egg-info/PKG-INFO b/pybibget.egg-info/PKG-INFO
index 48b2871..cea80f8 100644
--- a/pybibget.egg-info/PKG-INFO
+++ b/pybibget.egg-info/PKG-INFO
@@ -1,5 +1,186 @@
 Metadata-Version: 2.1
 Name: pybibget
 Version: 0.0.1
+Summary: Command line utility to automatically retrieve BibTeX citations from MathSciNet, arXiv, PubMed and doi.org
+Home-page: https://github.com/wirhabenzeit/pybibget
+Author: Dominik Schröder
+Author-email: dschroeder@ethz.ch
+License: MIT License
+Keywords: BibTeX,MathSciNet,PubMed,DOI,arXiv,bibliography,command-line,citation
+Classifier: Programming Language :: Python :: 3
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: OS Independent
 Requires-Python: >=3.6
+Description-Content-Type: text/markdown
 License-File: LICENSE
+
+# pybibget
+
+Command line utility to automatically retrieve BibTeX citations from MathSciNet, arXiv, PubMed and doi.org
+
+## Installation
+
+```bash
+$ pip install pybibget
+```
+
+## Usage
+
+### Citation Keys
+
+`pybibget` provides a command line interface to obtain BibTeX entries from citation keys of the form 
+| Citation key         | Format                        |
+|----------------------|-------------------------------|
+| MR0026286            | MathSciNet (requires subscription)                    |
+| 1512.03385           | arXiv identifier (new format) |
+| hep-th/9711200       | arXiv identifier (old format) |
+| PMID:271968          | PubMed                        |
+| 10.1109/CVPR.2016.90 | DOI                           |
+
+`pybibget key1 key2 ...` prints the BibTeX entries `stdout`:
+```console
+% pybibget MR0026286 10.1109/TIT.2006.885507 math/0211159 PMID:271968 10.1109/CVPR.2016.90 hep-th/9711200
+
+@article{MR0026286,
+    AUTHOR = "Shannon, C. E.",
+    TITLE = "A mathematical theory of communication",
+    JOURNAL = "Bell System Tech. J.",
+    FJOURNAL = "The Bell System Technical Journal",
+    VOLUME = "27",
+    YEAR = "1948",
+    PAGES = "379--423, 623--656",
+    ISSN = "0005-8580",
+    MRCLASS = "60.0X",
+    MRNUMBER = "26286",
+    MRREVIEWER = "J. L. Doob",
+    DOI = "10.1002/j.1538-7305.1948.tb01338.x",
+    URL = "https://doi.org/10.1002/j.1538-7305.1948.tb01338.x"
+}
+
+@article{10.1109/TIT.2006.885507,
+    AUTHOR = "Candes, Emmanuel J. and Tao, Terence",
+    TITLE = "Near-optimal signal recovery from random projections: universal encoding strategies?",
+    JOURNAL = "IEEE Trans. Inform. Theory",
+    FJOURNAL = "Institute of Electrical and Electronics Engineers. Transactions on Information Theory",
+    VOLUME = "52",
+    YEAR = "2006",
+    NUMBER = "12",
+    PAGES = "5406--5425",
+    ISSN = "0018-9448",
+    MRCLASS = "94A12 (41A25 94A13)",
+    MRNUMBER = "2300700",
+    MRREVIEWER = "L. L. Campbell",
+    DOI = "10.1109/TIT.2006.885507",
+    URL = "https://doi.org/10.1109/TIT.2006.885507"
+}
+
+@unpublished{math/0211159,
+    author = "Perelman, Grisha",
+    title = "{The} entropy formula for the {Ricci} flow and its geometric applications",
+    note = "Preprint",
+    year = "2002",
+    eprint = "math/0211159",
+    archiveprefix = "arXiv"
+}
+
+@article{PMID:271968,
+    author = "Sanger, F. and Nicklen, S. and Coulson, A. R.",
+    doi = "10.1073/pnas.74.12.5463",
+    url = "https://doi.org/10.1073/pnas.74.12.5463",
+    year = "1977",
+    publisher = "Proceedings of the National Academy of Sciences",
+    volume = "74",
+    number = "12",
+    pages = "5463--5467",
+    title = "{DNA} sequencing with chain-terminating inhibitors",
+    journal = "Proceedings of the National Academy of Sciences",
+    PMID = "271968"
+}
+
+@inproceedings{10.1109/CVPR.2016.90,
+    author = "He, Kaiming and Zhang, Xiangyu and Ren, Shaoqing and Sun, Jian",
+    doi = "10.1109/cvpr.2016.90",
+    url = "https://doi.org/10.1109/cvpr.2016.90",
+    year = "2016",
+    publisher = "{IEEE}",
+    title = "{Deep} {Residual} {Learning} for {Image} {Recognition}",
+    booktitle = "2016 {IEEE} Conference on Computer Vision and Pattern Recognition ({CVPR})"
+}
+
+@article{hep-th/9711200,
+    AUTHOR = "Phan, Trung V. and Doan, Anh",
+    TITLE = "A curious use of extra dimension in classical mechanics: geometrization of potential",
+    JOURNAL = "J. Geom. Graph.",
+    FJOURNAL = "Journal for Geometry and Graphics",
+    VOLUME = "25",
+    YEAR = "2021",
+    NUMBER = "2",
+    PAGES = "265--270",
+    ISSN = "1433-8157",
+    MRCLASS = "70B05",
+    MRNUMBER = "4394144",
+    DOI = "10.1023/a:1026654312961",
+    URL = "https://doi.org/10.1023/a:1026654312961",
+    eprint = "hep-th/9711200",
+    archiveprefix = "arXiv"
+}
+```
+With the option `-f filename` the result can be *appended* to any given file directly:
+```console
+% pybibget MR0026286 10.1109/TIT.2006.885507 math/0211159 PMID:271968 10.1109/CVPR.2016.90 hep-th/9711200 -f bibliography.bib
+Succesfully appended 6 BibTeX entries to bibliography.bib
+``` 
+
+### TeX File Parsing
+
+`pybibparse` automatically parses missing citations from the `biber` or `bibtex` log for a given `TeX` file
+```console
+% pybibparse example 
+
+@article{math/0211159,
+    author = "Perelman, Grisha",
+    title = "{The} entropy formula for the {Ricci} flow and its geometric applications",
+    journal = "preprint",
+    year = "2002",
+    eprint = "math/0211159",
+    archiveprefix = "arXiv"
+}
+
+@article{PMID:271968,
+    author = "Sanger, F. and Nicklen, S. and Coulson, A. R.",
+    doi = "10.1073/pnas.74.12.5463",
+    url = "https://doi.org/10.1073/pnas.74.12.5463",
+    year = "1977",
+    publisher = "Proceedings of the National Academy of Sciences",
+    volume = "74",
+    number = "12",
+    pages = "5463--5467",
+    title = "{DNA} sequencing with chain-terminating inhibitors",
+    journal = "Proceedings of the National Academy of Sciences",
+    PMID = "271968"
+}
+```
+
+With the option `-w [file_name]` the obtained citations are automatically appended to the `.bib` file. `[file_name]` is optional if the `.bib` file has been specified in the `TeX` file.
+```console
+% pybibparse example -w
+Succesfully appended 2 BibTeX entries to bibliography.bib
+```
+
+## Data Sources
+
+### MathSciNet
+Directly accesses [MathSciNet](https://mathscinet.ams.org/mathscinet/index.html) and uses the provided citation unmodified
+
+### DOI
+First searches for the DOI on [MathSciNet](https://mathscinet.ams.org/mathscinet/index.html). If successful, uses the MathSciNet strategy, otherwise uses the citation from [doi.org](https://doi.org) with the following modifications:
+- Author names and title are converted to TeX form (special characters like `ö` are converted to `"{o}`)
+- Capital words in the title are surrounded by `{...}`to ensure capitalization
+- Publication month data is removed
+
+### PubMed
+Searches for the DOI on [PubMed](https://pubmed.ncbi.nlm.nih.gov), then uses the DOI strategy and appends `pmid = [PMID]` to the resulting citation.
+
+### arXiv 
+Uses DOI strategy if metadata contains `doi`. 
+Otherwise creates an `unpublished` bib-entry with `note = "Preprint"` or `note = [Journal Metadata]` (if provided). In any-case appends `eprint = [arXiv identifier]` to the citation.
diff --git a/pybibget.egg-info/requires.txt b/pybibget.egg-info/requires.txt
index 3f4498a..1a18274 100644
--- a/pybibget.egg-info/requires.txt
+++ b/pybibget.egg-info/requires.txt
@@ -1,4 +1,4 @@
-requests
-pybtex
-lxml
-pylatexenc
+requests>=2.28.1
+pybtex>=0.24.0
+lxml>=4.9.2
+pylatexenc>=1.3
diff --git a/setup.cfg b/setup.cfg
index 1469d43..da2e38b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,20 +1,31 @@
 [metadata]
 name = pybibget
 version = 0.0.1
+author = Dominik Schröder
+author_email = dschroeder@ethz.ch
+url = https://github.com/wirhabenzeit/pybibget
+description = Command line utility to automatically retrieve BibTeX citations from MathSciNet, arXiv, PubMed and doi.org
+long_description = file: README.md
+long_description_content_type = text/markdown
+keywords = BibTeX, MathSciNet, PubMed, DOI, arXiv, bibliography, command-line, citation
+license = MIT License
+classifiers =
+    Programming Language :: Python :: 3
+    License :: OSI Approved :: MIT License
+    Operating System :: OS Independent
 
 [options]
 packages = find:
 zip_safe = True
 include_package_data = True
 install_requires =
-    requests
-    pybtex
-    lxml
-    pylatexenc
+    requests >= 2.28.1
+    pybtex >= 0.24.0
+    lxml >= 4.9.2
+    pylatexenc >= 1.3
 python_requires = >=3.6
 
-
 [options.entry_points]
 console_scripts =
     pybibget = pybibget:pybibget
-    pybibparse = pybibget:pybibparse
\ No newline at end of file
+    pybibparse = pybibget:pybibparse