Radoslaw Katarzyniak Ngoc Thanh Nguyen Solving Conflicts of Agent Knowledge States in Multiagent Systems. 231-239 2002 conf/sofsem/2002 SOFSEM http://dx.doi.org/10.1007/3-540-36137-5_17 db/conf/sofsem/sofsem2002.html#KatarzyniakN02