@article{700564,
     title = {Paracompact and countably paracompact subsets},
     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 = {1971},
     pages = {49-53},
     zbl = {0227.54015},
     url = {http://dml.mathdoc.fr/item/700564}
}

Aull, C. E. Paracompact and countably paracompact subsets, dans General Topology and Its Relations to Modern Analysis and Algebra, GDML_Books,  (1971), pp. 49-53. http://gdmltest.u-ga.fr/item/700564/