Sergio Rajsbaum LATIN 2002: Theoretical Informatics, 5th Latin American Symposium, Cancun, Mexico, April 3-6, 2002, Proceedings LATIN Lecture Notes in Computer Science 2286 Springer 2002 3-540-43400-3 https://doi.org/10.1007/3-540-45995-2 db/conf/latin/latin2002.html