Fernando Brito e Abreu Geert Poels Houari A. Sahraoui Horst Zuse Quantitative Approaches in Object-Oriented Software Engineering. 93-103 2000 conf/ecoopw/2000 ECOOP Workshops http://link.springer.de/link/service/series/0558/bibs/1964/19640093.htm db/conf/ecoopw/ecoopw2000.html#AbreuPSZ00