Reproduced from Smith et al., 19992
+Reproduced from Smith et al., 19992
+See Smith et al., 19992
+Reproduced with permission from Smith et al., 19992
+Smith et al., 19992
+Adapted from Smith et al., 19992
+Smith et al., 19992
+Reprinted from Smith et al., 19992
+Smith et al., 19992
+Reprinted with permission from Smith et al., 19992
+Smith et al., 19992
+Modified from Smith et al., 19992
+Smith et al., 19992
+Modified with permish from Smith et al., 19992
+Smith et al., 19992
+