Naji-Azimi, Zahra; Salari, Majid; Toth, Paolo - In: European Journal of Operational Research 217 (2012) 1, pp. 17-25
We address the Capacitated m-Ring-Star Problem in which the aim is to find m rings (simple cycles) visiting a central depot, a subset of customers and a subset of potential (Steiner) nodes, while customers not belonging to any ring must be “allocated” to a visited (customer or Steiner) node....