Daniel Stutzbach Reza Rejaie Nick G. Duffield Subhabrata Sen Walter Willinger On unbiased sampling for unstructured peer-to-peer networks. 27-40 2006 conf/imc/2006 Internet Measurement Conference http://doi.acm.org/10.1145/1177080.1177084 db/conf/imc/imc2006.html#StutzbachRDSW06