Rosas, E., Carpintero, C. and Hussain, S. 2015. (i, j)-ω-semiopen sets and (i, j)-ω-semicontinuity in bitopological spaces. CUBO, A Mathematical Journal. 17, 3 (Oct. 2015), 43–51. DOI:https://doi.org/10.4067/S0719-06462015000300003.