Ciarán Bryce Chrislain Razafimahefa Michel Pawlak Lana: An Approach to Programming Autonomous Systems. 281-308 2002 conf/ecoop/2002 ECOOP http://link.springer.de/link/service/series/0558/bibs/2374/23740281.htm db/conf/ecoop/ecoop2002.html#BryceRP02