@article{1183523694,
author = {Fine, N. J. and Gillman, L.},
title = {Extension of continuous functions in $\beta {\mathbf{N}}$},
journal = {Bull. Amer. Math. Soc.},
volume = {66},
number = {6},
year = {1960},
pages = { 376-381},
language = {en},
url = {http://dml.mathdoc.fr/item/1183523694}
}
Fine, N. J.; Gillman, L. Extension of continuous functions in $\beta {\mathbf{N}}$. Bull. Amer. Math. Soc., Tome 66 (1960) no. 6, pp. 376-381. http://gdmltest.u-ga.fr/item/1183523694/