@article{05656020, title = {Operation-separation axioms in bitopological spaces.}, journal = {Analele \c Stiin\c tifice ale Universit\u a\c tii ``Ovidius" Constan\c ta. Seria: Matematic\u a}, volume = {17}, year = {2009}, pages = {5-18}, zbl = {1199.54173}, language = {en}, url = {http://dml.mathdoc.fr/item/05656020} }
Al-Areefi, S.M. Operation-separation axioms in bitopological spaces.. Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică, Tome 17 (2009) pp. 5-18. http://gdmltest.u-ga.fr/item/05656020/