The following publications are possibly variants of this publication:
- A primal-dual approximation algorithm for a two depot heterogeneous traveling salesman problemJungyun Bae, Sivakumar Rathinam. ol, 10(6):1269-1285, 2016. [doi]
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- An approximation algorithm for a symmetric Generalized Multiple Depot, Multiple Travelling Salesman ProblemWaqar Malik, Sivakumar Rathinam, Swaroop Darbha. orl, 35(6):747-753, 2007. [doi]
- 3-Approximation algorithm for a two depot, heterogeneous traveling salesman problemSai Yadlapalli, Sivakumar Rathinam, Swaroop Darbha. ol, 6(1):141-152, 2012. [doi]
- A transformation for a Multiple Depot, Multiple Traveling Salesman ProblemPaul Oberlin, Sivakumar Rathinam, Swaroop Darbha. amcc 2009: 2636-2641 [doi]