1. Baeza-Yates, R.A.: Efficient Text Searching. PhD thesis, Dept. of Computer Science. University of Waterloo (May 1989);
2. Also as Research Report CS-89-17
3. Baeza-Yates, R.A., Bradford, P.G., Culberson, J.C., Rawlins, G.J.E.: The Complexity of Multiple Searching (1993) (unpublished manuscript)
4. Baeza-Yates, R.A., Ribeiro-Neto, B.: Modern Information Retrieval, 513 pages. ACM Press/Addison-Wesley, England (1999)
5. Lecture Notes in Computer Science;R.A. Baeza-Yates,2003