Leydesdorff, Loet; Rafols, Ismael - In: Journal of Informetrics 6 (2012) 2, pp. 318-332
Recent advances in methods and techniques enable us to develop interactive overlays to a global map of science based on aggregated citation relations among the 9162 journals contained in the Science Citation Index and Social Science Citation Index 2009. We first discuss the pros and cons of the...