Tomasz Orlowski Bogdan Wiszniewski Stepwise Development of Distributed Interactive Simulation Systems. 489-496 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3019&spage=489 2003 conf/ppam/2003 PPAM db/conf/ppam/ppam2003.html#OrlowskiW03