@article{700898,
     title = {Normale Zahlen und Bairesche Kategorien von Mengen},
     booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1967},
     pages = {306-307},
     zbl = {0189.33405},
     url = {http://dml.mathdoc.fr/item/700898}
}

Šalát, T. Normale Zahlen und Bairesche Kategorien von Mengen, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1967), pp. 306-307. http://gdmltest.u-ga.fr/item/700898/