1.
Eugster M, Mousset F. Vertex Covering with Monochromatic Pieces of few Colours. Electron. J. Combin. [Internet]. 2018Aug.24 [cited 2026May15];25(3):#P3.33. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v25i3p33