Ralf Reussner Wolfgang Weck Practical Problems of Programming in the Large (PPPL). 10-22 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3344&spage=10 2004 conf/ecoopw/2004 ECOOP Workshops db/conf/ecoopw/ecoopw2004.html#ReussnerW04