@article{700843,
title = {The space $\beta N$ and the continuum hypothesis},
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 = {144-146},
mrnumber = {MR0233334},
zbl = {0211.54605},
url = {http://dml.mathdoc.fr/item/700843}
}
Gillman, L. The space $\beta N$ and the continuum hypothesis, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books, (1967), pp. 144-146. http://gdmltest.u-ga.fr/item/700843/