@inproceedings{VISSOFT-2007-WettelL,
	author        = "Richard Wettel and Michele Lanza",
	booktitle     = "{Proceedings of the Fourth IEEE International Workshop on Visualizing Software for Understanding and Analysis}",
	doi           = "10.1109/VISSOF.2007.4290706",
	isbn          = "1-4244-0600-5",
	pages         = "92--99",
	publisher     = "{IEEE Computer Society}",
	title         = "{Visualizing Software Systems as Cities}",
	year          = 2007,
}