@article{Georgiev:2019:TransmittanceFormulations,
  author = {Iliyan Georgiev and Zackary Misso and Toshiya Hachisuka and Derek Nowrouzezahrai and Jaroslav K\v{r}iv\'{a}nek and Wojciech Jarosz},
  title = {Integral formulations of volumetric transmittance},
  journal = {ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia)},
  volume = {38},
  number = {6},
  year = {2019},
  month = nov,
  keywords = {participating media, transmittance, null collision, null scattering, stochastic sampling, Monte Carlo integration}
}