Philippe Lahire Gabriela Arévalo Hernán Astudillo Andrew P. Black Erik Ernst Marianne Huchard T. Oplustil Markku Sakkinen Petko Valtchev MASPEGHI 2004 Mechnisms for Specialization, Generalization and Inheritance. 101-117 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3344&spage=101 2004 conf/ecoopw/2004 ECOOP Workshops db/conf/ecoopw/ecoopw2004.html#LahireAABEHOSV04