%0 Journal Article %A Fangfang Zhao %A Bin Pang %T Equivalence among L-closure (interior) operators, L-closure (interior) systems and L-enclosed (internal) relations %J Filomat %D 2022 %P 979 %V 36 %N 3 %U http://geodesic.mathdoc.fr/articles/10.2298/FIL2203979Z/ %R 10.2298/FIL2203979Z %G en %F 10_2298_FIL2203979Z