Alexander V. Smirnov Mikhail Pashkin Nikolai Chilov Tatiana Levashova Knowledge logistics in information grid environment. 61-79 2004 20 Future Generation Comp. Syst. 1 http://dx.doi.org/10.1016/S0167-739X(03)00165-1 db/journals/fgcs/fgcs20.html#SmirnovPCL04