TY  - JOUR
AU  - Ya. L. Kreinin
TI  - On $C\Phi$-kernels of sets effectively different from $\Phi$-sets
JO  - Doklady Akademii Nauk
PY  - 1965
SP  - 752
EP  - 755
VL  - 165
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1965_165_4_a5/
LA  - ru
ID  - DAN_1965_165_4_a5
ER  -