1) E. Horowitz, S. Sahni, and S. Rajasekaran,
Computer Algorithms/C++, W.H. Freeman Press,
New York, 1997, 769 pages.

2) E. Horowitz, S. Sahni, and S. Rajasekaran,
Computer Algorithms, W.H. Freeman Press,
New York, 1998, 769 pages.