TY - JOUR U1 - Wissenschaftlicher Artikel A1 - Pesch, Erwin T1 - An approximation algorithm for a special case of the asymmetric traveling salesman problem Y1 - 2016 N1 - In: International Journal of Production Research, 54 (2016) 14, 4205-4212, DOI 10.1080/00207543.2015.1113327 ER -