Samir Emdanat George Stiny Emmanuel-George Vakaló Generative Systems in Design. 239-240 1999 13 AI EDAM 4 http://journals.cambridge.org/bin/bladerunner?REQUNIQ=1103478671&REQSESS=1000046&118000REQEVENT=&REQINT1=38715&REQAUTH=0 db/journals/aiedam/aiedam13.html#EmdanatSV99