@article{Salas Brown_Rosas_Carpintero_2009, title={Generalized closed sets via ideals and operator}, volume={23}, url={https://revistas.pucp.edu.pe/index.php/promathematica/article/view/10268}, number={45-46}, journal={Pro Mathematica}, author={Salas Brown, Margot and Rosas, Ennis and Carpintero, Carlos}, year={2009}, month={sep.}, pages={127-146} }