@InProceedings{Goussevskaia2010Efficiency,
	 author =	{Olga Goussevskaia and Yvonne Anne Pignolet and  Roger Wattenhofer},
	 title =	{{Efficiency of Wireless Networks: Approximation Algorithms for the Physical Interference Model}},
	 booktitle =	{{Foundations and Trends in Networking, Vol. 4, No. 3}},
	 month =	{November},
	 year =		{2010}
}