Grzegorz Czajkowski Laurent Daynès Nathaniel Nystrom Code Sharing among Virtual Machines. 155-177 2002 conf/ecoop/2002 ECOOP http://link.springer.de/link/service/series/0558/bibs/2374/23740155.htm db/conf/ecoop/ecoop2002.html#CzajkowskiDN02