@InProceedings{Rickenbach2008energyefficient,
	author=	{Pascal von Rickenbach},
	title=	{{Energy-Efficient Data Gathering in Sensor Networks}},
	booktitle=	{{PhD Thesis, ETH Zurich, Diss. ETH No. 17801}},
	month=	{May},
	year=	{2008},
}