TY  - JOUR
AU  - Jussi Ketonen
TI  - On the existence of P-points in the Stone-Čech compactification of integers
JO  - Fundamenta Mathematicae
PY  - 1976
SP  - 91
EP  - 94
VL  - 92
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-92-2-91-94/
DO  - 10.4064/fm-92-2-91-94
LA  - en
ID  - 10_4064_fm_92_2_91_94
ER  -