[1]
L. Cook, T. Masařík, M. Pilipczuk, A. Reinald, and U. S. Souza, “Proving a Directed Analogue of the Gyárfás-Sumner Conjecture for Orientations of $P_4$”, Electron. J. Combin., vol. 30, no. 3, p. P3.36, Sep. 2023.