Ymir Vigfusson Adam Silberstein Brian F. Cooper Rodrigo Fonseca Adaptively Parallelizing Distributed Range Queries. 682-693 2009 2 PVLDB 1 http://www.vldb.org/pvldb/2/vldb09-213.pdf db/journals/pvldb/pvldb2.html#VigfussonSCF09