Beginning Mathematical Logic: A Study Guide
Peter Smith
Combinatorial Optimization: Theory and Algorithms
Bernhard Korte & Jens Vygen
Algorithms and Combinatorics (2)
Why Greatness Cannot Be Planned: The Myth of the Objective
Kenneth O. Stanley & Joel Lehman
The Design of Approximation Algorithms
David P. Williamson & David B. Shmoys
Algorithms and Combinatorics (1)