@TechReport{      moulitsas01tr,
author          = {Irene Moulitsas and George Karypis},
title           = {Multilevel Algorithms for Generating Coarse Grids for Multigrid Methods},
institution     = {Department of Computer Science and Engineering, University of Minnesota},
year            = {2001},
number          = {01-021},
note            = {Submitted to The Supercomputing 2001 Conference}
}