@incollection{ClasenHege2005, author = {Malte Clasen and Hans-Christian Hege}, title = {Realistic illumination of vegetation in real-time environments}, booktitle = {Trends in Real-Time Landscape Visualization and Participation}, editor = {Erich Buhmann and Philip Paar and Ian Bishop and Eckart Lange}, pages = {107 -- 114}, year = {2005}, }