Tom Mertens Jan Kautz Philippe Bekaert Frank Van Reeth Hans-Peter Seidel Efficient Rendering of Local Subsurface Scattering. 51-58 2003 conf/pg/2003 Pacific Conference on Computer Graphics and Applications http://doi.ieeecomputersociety.org/10.1109/PCCGA.2003.1238246 db/conf/pg/pg2003.html#MertensKBRS03