“…The original problem, MMSP-W, is an NP-hard problem [3] for which several alternative procedures have been proposed. These solutions include exact procedures based on branchand-bound ( [16]), dynamic programming ( [3], [17], [18]), heuristic procedures based on local search ( [19]), greedy algorithms with priority rules ( [19], [20]), metaheuristics ( [21]) and beam search ( [22]). Several studies have also considered the multi-criteria option (( [23], [24], [25], [26]).…”