@article{markus2003cocitation, abstract = {Abstract  After 30 years of research, co-citation analysis has become the dominant method for the empirical study of the structures of scientific communication. There is a considerable variety of methods and, at the same time, a lack of methodological evaluation.This paper summarizes the present state of co-citation analysis and presents several methods of clustering references. Thedatabase used is a selection of 2,114 documents in the field of organization studies from 1986-2000. The evaluative studyshows that the choice of methods has a strong impact on the results created. It also shows that the methods of cluster andfactor analysis hitherto used have only a limited value in differentiating clearly between schools of scientific research- the 'invisible colleges'.}, author = {Gmür, Markus}, interhash = {f8d7adc52a63ff593c04f64251c9dffa}, intrahash = {f5540ba3281db06a31c1bf73db95be44}, journal = {Scientometrics}, month = {#may#}, number = 1, pages = {27--57}, title = {Co-citation analysis and the search for invisible colleges: A methodological evaluation}, url = {http://dx.doi.org/10.1023/A:1023619503005}, volume = 57, year = 2003 }