Yosuke Bando Takaaki Kuratate Tomoyuki Nishita A Simple Method for Modeling Wrinkles on Human Skin. 166-175 2002 conf/pg/2002 Pacific Conference on Computer Graphics and Applications http://csdl.computer.org/comp/proceedings/pg/2002/1784/00/17840166abs.htm db/conf/pg/pg2002.html#BandoKN02