Fischer, Herbert Max Planck Institute for Medical Research, Max Planck Society;
http://www.sciencedirect.com/science/article/pii/S0040403901881132/pdf?md5=4ca51c0bf4b3f477205250ca4f367f1c&pid=1-s2.0-S0040403901881132-main.pdf (Any fulltext)
https://doi.org/10.1016/S0040-4039(01)88113-2 (Any fulltext)
Fischer, H. (1969). Mo-Theoretische Untersuchung zur Stabilität von Vinylkationen. Tetrahedron Letters, 10(26), 2169-2172. doi:10.1016/S0040-4039(01)88113-2.