@InProceedings{Kuhn2004Unit,
	 author =	{Fabian Kuhn and Thomas Moscibroda and Roger Wattenhofer},
	 title =	{{Unit Disk Graph Approximation}},
	 booktitle =	{{ACM Joint Workshop on Foundations of Mobile Computing (DIALM-POMC), Philadelphia, Pennsylvania, USA}},
	 month =	{October},
	 year =		{2004}
}