THEORETICAL COMPUTER SCIENCE, vol. 412, no. 39, page. 5211 - 5224, 2011-09-09
OPERATIONS RESEARCH LETTERS, vol. 34, no. 6, page. 692 - 696, 2006-11
DISCRETE APPLIED MATHEMATICS, vol. 148, no. 1, page. 49 - 61, 2005-04-30
COMPUTERS & OPERATIONS RESEARCH, vol. 31, no. 12, page. 2055 - 2061, 2004-10
PRODUCTION PLANNING & CONTROL, vol. 15, no. 5, page. 495 - 501, 2004-07