Coelho, E., 		Coelho, H., 		Faria, L., 		Ferreira, M., & 		Klein, S.
(2022).
 The absolute oriented clique number problem is NP-complete.
In <em>Proceedings of the 7th Theory of Computation Meeting</em>, (pp. 13-16). Porto Alegre: SBC.
doi:10.5753/etc.2022.222592