TY - JOUR AU - Fangfang Zhao AU - Bin Pang TI - Equivalence among L-closure (interior) operators, L-closure (interior) systems and L-enclosed (internal) relations JO - Filomat PY - 2022 SP - 979 VL - 36 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.2298/FIL2203979Z/ DO - 10.2298/FIL2203979Z LA - en ID - 10_2298_FIL2203979Z ER -