@article{Walter07Microfacet,
  author    = {Bruce Walter and Stephen R. Marschner and Hongsong Li and Kenneth E. Torrance},
  title     = {{Microfacet Models for Refraction through Rough Surfaces}},
  journal   = {Rendering Techniques (Proceedings EG Symposium on Rendering)},
  year      = {2007}
}

@article{Zhao11Building,
	author   = {Shuang Zhao and Wenzel Jakob and Steve Marschner and Kavita Bala},
	title    = {{Building Volumetric Appearance Models of Fabric using Micro CT Imaging}},
  	journal  = {ACM Transactions on Graphics (Proceedings SIGGRAPH 2011)},
  	year     = {2011},
	month    = {July}
}