Ronald J. Brachman Alexander Borgida Deborah L. McGuinness Peter F. Patel-Schneider "Reducing" CLASSIC to Practice: Knowledge Representation Theory Meets Reality. 436-465 2009 Conceptual Modeling: Foundations and Applications http://dx.doi.org/10.1007/978-3-642-02463-4_23 conf/birthday/2009mylopoulos db/conf/birthday/mylopoulos2009.html#BrachmanBMP09