Karthik Ramani Abhishek Agrawal Mahendra Babu Christoph Hoffmann CADDAC: Multi-Client Collaborative Shape Design System with Server-based Geometry Kernel. 170-173 2003 3 J. Comput. Inf. Sci. Eng. 2 http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JCISB6000003000002000170000001&idtype=cvips&gifs=Yes db/journals/jcise/jcise3.html#RamaniABH03