@article{CMUC_2013__54_2_a5,
     author = {Chatyrko, Vitalij A. and Hattori, Yasunao},
     title = {A poset of topologies on the set of real numbers},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {189--196},
     publisher = {mathdoc},
     volume = {54},
     number = {2},
     year = {2013},
     mrnumber = {3067703},
     zbl = {06221262},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2013__54_2_a5/}
}