Alexander Kleymenov D. Petunin Alexander Semenov I. Vazhev A Model of Cooperative Solvers for Computational Problems. 797-802 2001 conf/ppam/2001 PPAM http://link.springer.de/link/service/series/0558/bibs/2328/23280797.htm db/conf/ppam/ppam2001.html#KleymenovPSV01