@incollection{2002_ganster_cgi, author = {B. Ganster and R. Klein and M. Sattler and R. Sarlette}, title = {Realtime Shading of Folded Surfaces}, editor = {J. Vince and R. Earnshaw}, booktitle = {Advances in Modelling, Animation and Rendering}, year = {2002}, month = {July}, pages = {465-480}, publisher = {Springer Verlag}, institution = {Universit\"{a}t Bonn}, organization = {Computer Graphics Society (CGS)}, conference = {Computer Graphics International (CGI2002)}, ISBN = {1-85233-654-4} }