Mauro Ferrari Camillo Fiorentini Alberto Momigliano Mario Ornaghi Snapshot Generation in a Constructive Object-Oriented Modeling Language. 169-184 2007 LOPSTR http://dx.doi.org/10.1007/978-3-540-78769-3_12 conf/lopstr/2007 db/conf/lopstr/lopstr2007.html#FerrariFMO07