TY  - JOUR
AU  - Malykhin, V. I.
TI  - The sequentiality and the Fréchet-Urysohn property with  respect to ultrafilters
JO  - Acta Universitatis Carolinae. Mathematica et Physica
PY  - 1990
SP  - 65
EP  - 69
VL  - 31
IS  - 2
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/AUCMP_1990__31_2_a10/
LA  - en
ID  - AUCMP_1990__31_2_a10
ER  -