Sylvie Borne Roland Grappe Mathieu Lacroix 0001 The Uncapacitated Asymmetric Traveling Salesman Problem with Multiple Stacks. 105-116 2012 ISCO https://doi.org/10.1007/978-3-642-32147-4_11 conf/iscopt/2012 db/conf/iscopt/isco2012.html#BorneGL12