Voráček, M., Vagner, L., Rahman, S.M., Iliopoulos, C.S.
VORÁČEK, M., et al. Computing Constrained Longest Common Subsequence for Degenerate Strings using Finite Automata. In: Algorithms and Complexity in Durham 2007. Durham, 2007-09-17/2007-09-19. London: King's College, 2007. p. 94-106. ISBN 978-1-904987-55-0.