[1]
F. Duque, H. González-Aguilar, C. Hernández-Vélez, J. Leaños, and C. Medina, “The Complexity of Computing the Cylindrical and the $t$-Circle Crossing Number of a Graph”, Electron. J. Combin., vol. 25, no. 2, p. P2.43, Jun. 2018.