TY  - JOUR
AU  - I. I. Parovichenko
TI  - On some questions connected with the iteration of set-theoretic operations
JO  - Sbornik. Mathematics
PY  - 1978
SP  - 813
EP  - 840
VL  - 34
IS  - 6
UR  - http://geodesic.mathdoc.fr/item/SM_1978_34_6_a6/
LA  - en
ID  - SM_1978_34_6_a6
ER  -