Rosas, E., Carpintero, C., Salas, M., Sanabria, J., & Vásquez, L. (2017). Almost ω-continuous functions defined by ω-open sets due to Arhangel‘ski ̆ı. CUBO, A Mathematical Journal, 19(1), 1–15. https://doi.org/10.4067/S0719-06462017000100001