COMPUTER GRAPHICS FORUM, vol. 29, no. 2, page. 229 - 308, 2010-05
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, vol. 15, no. 1, page. 160 - 173, 2009-01
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, vol. 15, no. 1, page. 62 - 76, 2009-01