@article{GDZPPN002487616,
title = {The Elation Group of a 4-DImensional Laguerre Plane.},
journal = {Monatshefte f\"ur Mathematik},
volume = {112},
year = {1991},
pages = {207-232},
zbl = {0746.51008},
url = {http://dml.mathdoc.fr/item/GDZPPN002487616}
}
Steinke, Günter F. The Elation Group of a 4-DImensional Laguerre Plane.. Monatshefte für Mathematik, Tome 112 (1991) pp. 207-232. http://gdmltest.u-ga.fr/item/GDZPPN002487616/