Ruiz-Castillo, Javier; Waltman, Ludo - In: Journal of Informetrics 9 (2015) 1, pp. 102-117
We study the problem of normalizing citation impact indicators for differences in citation practices across scientific … fields. Normalization of citation impact indicators is usually done based on a field classification system. In practice, the …. Globally, for all the universities taken together citation impact indicators generally turn out to be relatively insensitive to …