@article{10_21136_CMJ_1972_101122,
     author = {Mr\'owka, S. and Tan, H. P.},
     title = {Sequences of disjoint open sets},
     journal = {Czechoslovak Mathematical Journal},
     pages = {517--521},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1972},
     doi = {10.21136/CMJ.1972.101122},
     mrnumber = {0310833},
     zbl = {0246.54027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101122/}
}