@inproceedings{STOC-1975-Wagner,
	author        = "Robert A. Wagner",
	booktitle     = "{Proceedings of the Seventh Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800116.803771",
	pages         = "218--223",
	publisher     = "{ACM}",
	title         = "{On the Complexity of the Extended String-to-String Correction Problem}",
	year          = 1975,
}