@article{700886,
     title = {Point countable open coverings in countably compact spaces},
     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 = {39-41},
     zbl = {0157.29403},
     url = {http://dml.mathdoc.fr/item/700886}
}

Aquaro, G. Point countable open coverings in countably compact spaces, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1967), pp. 39-41. http://gdmltest.u-ga.fr/item/700886/