DISCRETE OPTIMIZATION, vol. 8, no. 4, page. 513 - 524, 2011-11
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, vol. 213, no. 3, page. 489 - 497, 2011-09-16
THEORETICAL COMPUTER SCIENCE, vol. 412, no. 39, page. 5211 - 5224, 2011-09-09
JOURNAL OF SCHEDULING, vol. 14, no. 1, page. 27 - 38, 2011-02