Riccardo Dondi, Giancarlo Mauri, Florian Sikora, Italo Zoppis. Covering with Clubs: Complexity and Approximability. In Costas S. Iliopoulos, Hon Wai Leong, Wing-Kin Sung, editors, Combinatorial Algorithms - 29th International Workshop, IWOCA 2018, Singapore, July 16-19, 2018, Proceedings. Volume 10979 of Lecture Notes in Computer Science, pages 153-164, Springer, 2018. [doi]
Abstract is missing.