@article{10_2298_FIL2203979Z,
     author = {Fangfang Zhao and Bin Pang},
     title = {Equivalence among {L-closure} (interior) operators, {L-closure} (interior) systems and {L-enclosed} (internal) relations},
     journal = {Filomat},
     pages = {979 },
     year = {2022},
     volume = {36},
     number = {3},
     doi = {10.2298/FIL2203979Z},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL2203979Z/}
}