@InProceedings{Wattenhofer2004counting,
	author=	{Roger Wattenhofer and Peter Widmayer},
	title=	{{The counting pyramid: an adaptive distributed counting scheme}},
	booktitle=	{{Journal of Parallel and Distributed Computing, Volume 64, Issue 4. Elsevier}},
	month=	{April},
	year=	{2004},
}