@techreport{HegeSeebassStallingetal.1997, author = {Hans-Christian Hege and Martin Seebass and Detlev Stalling and Malte Z{\"o}ckler}, title = {A Generalized Marching Cubes Algorithm Based on Non-Binary Classifications}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {SC-97-05}, language = {eng}, year = {1997} }