[1] Andrejková G.: The longest restricted common subsequence problem. In: Proc. Prague Stringology Club Workshop’98, Prague 1998, pp. 14–25
[2] Andrejková G.: The set closest common subsequence problem. In: Proceedings of 4th International Conference on Applied Informatics’99, Eger–Noszvaj 1999, p. 8
[4] Hájek P.: Mathematics of Fuzzy Logic. Kluwer, Dordrecht 1998
[8] Kaufmann A.:
Introduction to Theory of Fuzzy Subsets. Vol. 1: Fundamental Theoretical Elements. Academic Press, New York 1975
MR 0485402
[11] Nakatsu N., Kombayashi, Y., Yajima S.:
A longest common subsequence algorithm suitable for similar text strings. Acta Inform. 18 (1982), 171–179
MR 0687701