Emanuele Danovaro Leila De Floriani Paola Magillo Enrico Puppo Davide Sobrero Level-of-detail for data analysis and exploration: A historical overview and some new perspectives. 334-344 2006 30 Computers & Graphics 3 http://dx.doi.org/10.1016/j.cag.2006.02.006 db/journals/cg/cg30.html#DanovaroFMPS06