@INPROCEEDINGS{molnar-papp:nil,
	AUTHOR       = "Emil Moln{\'a}r and D{\'a}vid Papp",
	TITLE        = "Visualization of Nil-geometry",
	BOOKTITLE    = "Proceedings of the Dresden Symposium Geometry",
	YEAR         = "2003",
	MONTH        = nov,
	EDITOR       = "G{\"u}nter Weiss",
	PAGES        = "219--226",
	ORGANIZATION = "Technische Universit{\"a}t Dresden, Institut f{\"u}r Geometrie",
	ISBN         = "3-86005-394-9"
}