@article{MOMA_1991__111_1_178521,
     author = {G\"unter F. Steinke},
     title = {The {Elation} {Group} of a {4-DImensional} {Laguerre} {Plane.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {207--232},
     year = {1991},
     volume = {111},
     number = {1},
     zbl = {0746.51008},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1991__111_1_178521/}
}