Prabhjot Singh Debasish Dutta Multi-Direction Slicing for Layered Manufacturing. 129-142 2001 1 J. Comput. Inf. Sci. Eng. 2 http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JCISB6000001000002000129000001&idtype=cvips&gifs=Yes db/journals/jcise/jcise1.html#SinghD01