David Maier (1978). «The Complexity of Some Problems on Subsequences and Supersequences». ACM Press. J. ACM. 25 (2): 322–336. doi:10.1145/322063.322075
L. Bergroth and H. Hakonen and T. Raita (2000). «A Survey of Longest Common Subsequence Algorithms». IEEE Computer Society. SPIRE. 00: 39–48. ISBN0-7695-0746-8. doi:10.1109/SPIRE.2000.878178