- Author: David L. Applegate, Robert E. Bixby, Vašek Chvátal, William J. Cook
- Language: English
- Year: 2011
- Author: Vašek Chvátal
- Language: English
- Year: 1983
- Author: Vašek Chvátal
- Language: English
- Year: 1983
- Author: Vašek Chvátal
- Language: English
- Year: 1983