Proof and the Art of Mathematics: Examples and Extensions
Joel David Hamkins
Combinatorial Optimization: Theory and Algorithms
Bernhard Korte & Jens Vygen
Algorithms and Combinatorics (2)
Filtering and System Identification: A Least Squares Approach
Michel Verhaegen & Vincent Verdult
Everything You Always Wanted To Know About Mathematics
Brendan W. Sullivan
The Design of Approximation Algorithms
David P. Williamson & David B. Shmoys