1. Approximation algorithms for multiple sequence alignment;Bafna;Theoret. Comput. Sci.,1997
2. The multiple sequence alignment in biology;Carrillo;SIAM J. Appl. Math.,1988
3. A survey of multiple sequence comparison methods;Chan;Bull. Math. Biol.,1992
4. Letter to the editor: Commentary on the letter by Ward C. Wheeler;Fitch;Mol. Biol. Evol.,1993
5. M.R. Garey, D.S.Johnson Computers and Intractability: A Guide to the Theory of NP-Completeness, W.H. Freeman, San Francisco, CA, 1979.