Iribarren-Maestro I, Lascurain-Sánchez ML, Sanz-Casado E Are multi-authorship and visibility related? Study of ten research areas at Carlos III University of Madrid. Scientometrics 2009 (79)1: 191-200
Opinions in the literature on the possible relationship between co-authorship and number of citations vary. The results of this study show that while multi-institutional and multi-national authorship raise the number of citations, co-authorship and number of citations are unrelated. Correspondence analysis failed to show any correlation between the quartile of the citing journal and multi-institutional or multinational authorship, but did reveal a relationship between citing journal quartile and departmental area.
Thanks to J. Harthley