Erratum to: Comput Optim Appl DOI 10.1007/s10589-012-9503-x

The affiliations are incorrect, the correct ones are:

For Hatem A. Fayed:

Faculty of Engineering, Department of Engineering Mathematics and Physics, Cairo University, Giza, Egypt

For Amir F. Atiya:

Faculty of Engineering, Department of Computer Engineering, Cairo University, Giza, Egypt

On p. 4, under “A branch and bound approach” section, 5th line: “left node” has to be “leaf node”.