@article{MAN_1969__181_161821,
     author = {K. NAGAMI},
     title = {...-Spaces and {Product} {Spaces.}},
     journal = {Mathematische Annalen},
     pages = {109--118},
     publisher = {mathdoc},
     volume = {181},
     year = {1969},
     zbl = {0165.25602},
     url = {http://geodesic.mathdoc.fr/item/MAN_1969__181_161821/}
}