Notes, Comments and Preliminary results Dec 20 2008 Jean-Michel Courtault and Naïla Hayek   On the Robustness of the h-index: a mathematical approach   Abstract  Contact Information  Citation  Full Text  -  Note   May 16 2004 Bertrand Crettez , Nayla Hayek and Jean-Michel Courtault   "On the differentiability of the benefit function": correction and addendum   Abstract  Contact Information  Citation  Full Text  -  Comment   Mar 24 2004 Bertrand Crettez , Naila Hayek and Jean-Michel Courtault   On the differentiability of the benefit function   Abstract  Contact Information  Citation  Full Text  -  Note