Adriano Lopes Ken Brodlie Improving the Robustness and Accuracy of the Marching Cubes Algorithm for Isosurfacing. 16-29 2003 9 IEEE Trans. Vis. Comput. Graph. 1 http://computer.org/tvcg/tg2003/v0016abs.htm db/journals/tvcg/tvcg9.html#LopesB03