@article{PA_1997_4_a6,
     author = {K. V. Matyushichev},
     title = {The simplest example of a completely regular, non-normal space},
     journal = {Problemy analiza},
     pages = {97--98},
     publisher = {mathdoc},
     number = {4},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PA_1997_4_a6/}
}