The Double Traveling Salesman Problem with Partial Last-In-First-Out Loading Constraints - Supplementary Material

The supplementary material associated with the article entitled "The double traveling salesman problem with partial last-in-first-out loading constraints", which has been submitted for possible publication in International Transactions in Operational Research (ITOR).与已提交至《国际运筹研究汇刊》（International Transactions in Operational Research，ITOR）以待发表、题为《带部分后进先出装载约束的双旅行商问题（double traveling salesman problem with partial last-in-first-out loading constraints）》的论文相关的补充材料。