@article{10_4064_fm_61_1_23_28,
     author = {E. Steiner and A. Steiner},
     title = {Topologies with $T_1$-complements},
     journal = {Fundamenta Mathematicae},
     pages = {23--28},
     publisher = {mathdoc},
     volume = {61},
     number = {1},
     year = {1967},
     doi = {10.4064/fm-61-1-23-28},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-61-1-23-28/}
}