@article{700929,
     title = {Remote points in $\beta R$
               },
     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 = {1962},
     pages = {175-176},
     mrnumber = {MR0145483},
     zbl = {0131.38002},
     url = {http://dml.mathdoc.fr/item/700929}
}

Gillman, L. Remote points in $\beta R$
               , dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1962), pp. 175-176. http://gdmltest.u-ga.fr/item/700929/