Traveling salesman problem heuristics: Leading methods, implementations and latest advances. - César Rego; Dorabela Gamboa; Fred W. Glover; Colin Osterman (Eur. J. Oper. Res., 2011)

A k-level data structure for large-scale traveling salesman problems. - Colin Osterman; César Rego (Ann. Oper. Res., 2016)