van Thor, W. F., Dgani, R., van den Horn, L. J., & Janka, H. T. (1995). Flux-limited neutrino diffusion for moving media. Astronomy & Astrophysics, 298, 863-868.
van den Horn, L. J. (1982). On the relativistic kinetic theory of neutrinos in stellar collapse. [Thesis, fully internal, Universiteit van Amsterdam].