New Approximation Algorithms for Longest Common Subsequences. - Lasse Bergroth; Harri Hakonen; Timo Raita (SPIRE, 1998)

A Survey of Longest Common Subsequence Algorithms. - Lasse Bergroth; Harri Hakonen; Timo Raita (SPIRE, 2000)

New Refinement Techniques for Longest Common Subsequence Algorithms. - Lasse Bergroth; Harri Hakonen; Juri Väisänen (SPIRE, 2003)

Utilizing Dynamically Updated Estimates in Solving the Longest Common Subsequence Problem. - Lasse Bergroth (SPIRE, 2005)