[1]
Caldas Cueva, M., Navalagi, G.B. and Saraf, R.K. 2017. On some functions concerning fuzzy PG-closed sets. Proyecciones (Antofagasta, On line). 25, 3 (May 2017), 261-271. DOI:https://doi.org/10.4067/S0716-09172006000300004.