``Memory-Efficient GroupBy-Aggregate using Compressed Buffer Trees'' by Hrishikesh Amur, Wolfgang Richter, David G. Andersen, Michael Kaminsky, Karsten Schwan, Athula Balanachandran, and Erik Zawadzki. In Proc. 4rd ACM Symposium on Cloud Computing (SOCC), (Santa Clara, CA), Oct. 2013.

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BibTeX entry:

@inproceedings{Amur:socc2013,
   author = {Hrishikesh Amur and Wolfgang Richter and David G. Andersen
	and Michael Kaminsky and Karsten Schwan and Athula Balanachandran
	and Erik Zawadzki},
   title = {Memory-Efficient {GroupBy-Aggregate} using Compressed Buffer
	Trees},
   booktitle = {{Proc. 4rd ACM Symposium on Cloud Computing (SOCC)}},
   address = {Santa Clara, {CA}},
   month = oct,
   year = {2013}
}