Franck Ledoux Agnès Arnould Pascale Le Gall Yves Bertrand Geometric Modelling with CASL. 176-200 2001 conf/wadt/2001 WADT http://link.springer.de/link/service/series/0558/bibs/2267/22670176.htm db/conf/wadt/wadt2001.html#LedouxAGB01