Approximating a Generalization of Metric TSP.

Takuro Fukunaga Hiroshi Nagamochi Approximating a Generalization of Metric TSP. 432-439 2007 90-D IEICE Trans. Inf. Syst. 2 https://doi.org/10.1093/ietisy/e90-d.2.432 db/journals/ieicet/ieicet90d.html#FukunagaN07