@article{GDZPPN00126334X, title = {On the two natural products in a Stone-Cech compactification .}, journal = {Semigroup forum}, volume = {48}, year = {1994}, pages = {255-257}, zbl = {0796.22003}, url = {http://dml.mathdoc.fr/item/GDZPPN00126334X} }
Pym, J.; Strauss, D.; El-Mabhouh, A. On the two natural products in a Stone-Cech compactification .. Semigroup forum, Tome 48 (1994) pp. 255-257. http://gdmltest.u-ga.fr/item/GDZPPN00126334X/