@article{PORMA_1959__18_4_114831,
     author = {Liu, Teng-Sun},
     title = {A note on maximal {T_1-topologies}},
     journal = {Portugaliae mathematica},
     pages = {235--236},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1959},
     mrnumber = {0141068},
     zbl = {0101.40403},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1959__18_4_114831/}
}