@inproceedings{STOC-1989-Blum,
	author        = "Avrim Blum",
	booktitle     = "{Proceedings of the 21st Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/73007.73058",
	isbn          = "0-89791-307-8",
	pages         = "535--542",
	publisher     = "{ACM}",
	title         = "{An O(n⁰⋅⁴)-Approximation Algorithm for 3-Coloring (and Improved Approximation Algorithm for k-Coloring)}",
	year          = 1989,
}