config.sty

% ************************************************************************* %
% 4. Biblatex
% ************************************************************************* %

%there was however the problem, that I could not get the spacing 
% for the headline right - depends on parskip!

% For [1] - Style comments:
%\usepackage[natbib=true,style=numeric,sorting=none]{biblatex}
% For (Name, 2002) - Style comments: 


\usepackage[%
  backend=bibtex,        % needed for compilation
  style=numeric,         % authoryear-comp maybe?
  sorting=none,
  minbibnames=5,
  maxbibnames=5,
  defernumbers=true,
  firstinits=true
  %% url=true,           %
  %% maxbibnames=99,     %
  %% doi=true,           %
  %% maxcitenames=2,     %
  %% dashed=false,       %  (1)
]{biblatex}

% (1): no dash for same authors in biblography: 
%      
%       John Doe 2012  ->   John Doe 2012
%       ----  2013          John Doe 2013


\DeclareFieldFormat*{urldate}{}

\AtEveryBibitem{%
  \ifentrytype{misc}{%
  }{%
    \clearfield{url}%
  }%
}


\AtEveryBibitem{\clearlist{language}}
\AtEveryBibitem{\ifentrytype{article}{\clearfield{issn}}{}}
\AtEveryBibitem{\clearfield{month}}
%\AtEveryBibitem{\clearfield{pages}}
%\AtEveryBibitem{\clearfield{number}}
%\AtEveryBibitem{\clearfield{volume}}
\AtEveryBibitem{\clearfield{eprint}}
\AtEveryBibitem{\clearfield{isbn}}
\AtEveryBibitem{\clearfield{shorttitle}}
\AtEveryBibitem{\clearfield{note}}


% removes quotation marks for article titles
\DeclareFieldFormat[article, incollection, inproceedings]{title}{#1} 

% set the distances between bib items
\setlength\bibitemsep{3.9pt}

% % Links to DOIs
% % see http://tex.stackexchange.com/questions/23832
% \ExecuteBibliographyOptions{doi=false}
% \newbibmacro{string+doi}[1]{%
%   \iffieldundef{doi}{#1}{\href{http://dx.doi.org/\thefield{doi}}{#1}}}
% \DeclareFieldFormat{title}{\usebibmacro{string+doi}{\mkbibemph{#1}}}
% \DeclareFieldFormat[article,incollection]{title}{\usebibmacro{string+doi}{#1}}


%\bibliography{extr}
%\bibliography{\string~/lib/main_bibtex}
\bibliography{lib/main}