@article{GDZPPN002084082, title = {Semiclassical 4-dimensional Laguerre Planes.}, journal = {Forum mathematicum}, volume = {2}, year = {1990}, pages = {233-248}, zbl = {0696.51008}, url = {http://dml.mathdoc.fr/item/GDZPPN002084082} }
Steinke, Günter F. Semiclassical 4-dimensional Laguerre Planes.. Forum mathematicum, Tome 2 (1990) pp. 233-248. http://gdmltest.u-ga.fr/item/GDZPPN002084082/