Edleno Silva de Moura Gonzalo Navarro Nivio Ziviani Ricardo A. Baeza-Yates Fast and flexible word searching on compressed text. 113-139 2000 18 ACM Trans. Inf. Syst. 2 http://doi.acm.org/10.1145/348751.348754 db/journals/tois/tois18.html#MouraNZB00