Sándor P. Fekete, Dominik Krupke. Covering Tours and Cycle Covers with Turn Costs: Hardness and Approximation. In Pinar Heggernes, editor, Algorithms and Complexity - 11th International Conference, CIAC 2019, Rome, Italy, May 27-29, 2019, Proceedings. Volume 11485 of Lecture Notes in Computer Science, pages 224-236, Springer, 2019. [doi]
Abstract is missing.