From the Rendering Equation to Stratified Light Transport Inversion

@article { 518,
title = {From the Rendering Equation to Stratified Light Transport Inversion},
journal = {International Journal of Computer Vision (IJCV)},
volume = {96},
number = {2},
year = {2012},
month = {Feb},
pages = {235-251},
URL = {http://graphics.berkeley.edu/papers/Ng-FTR-2011-06/index.html},
author = {Tian-Tsong Ng and Ramanpreet Singh Pahwa and Jiamin Bai and Kar-Han Tan and Ravi Ramamoorthi}
}