@article{700838,
title = {The compactness operator in general topology},
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 = {161-163},
mrnumber = {MR0232332},
zbl = {0165.25301},
url = {http://dml.mathdoc.fr/item/700838}
}
de Groot, J. The compactness operator in general topology, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books, (1967), pp. 161-163. http://gdmltest.u-ga.fr/item/700838/