Approximation preserving reductions among set covering and vertex covering hierarchies via differential approximation ratio

• Published in: International Journal of Computer Mathematics, vol. 81, num. 5, p. 569-582
• Publication date: 2004

Reference

• ROSE-ARTICLE-2006-010
• doi:10.1080/00207160410001688592
• View record in Web of Science

Record created on 2006-09-29, modified on 2012-03-20