1. Energy redistribution path tracing
2. Lecture Notes in Physics 1985 Springer Berlin Heidelberg G. Dejonghe J. Gonnord J. Nimal Perturbation calculations by the correlated samples methodMonte Carlo Methods and Applications in Neutronics Photonics and Statistical Physics 311 323
3. DesbrunM. HiraniA.N. LeokM. MarsdenJ.E.:Discrete exterior calculus 2005. arXiv:arXiv:math/0508341. 9