@inproceedings{STOC-2010-KollaMST,
	author        = "Alexandra Kolla and Yury Makarychev and Amin Saberi and Shang-Hua Teng",
	booktitle     = "{Proceedings of the 42nd Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/1806689.1806699",
	isbn          = "978-1-4503-0050-6",
	pages         = "57--66",
	publisher     = "{ACM}",
	title         = "{Subgraph sparsification and nearly optimal ultrasparsifiers}",
	year          = 2010,
}