TY  - JOUR
AU  - Nguyen Thi Thien Hoa
TI  - An extremal problem for classes of convolutions that do not increase variation
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1982
SP  - 3
EP  - 7
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1982_5_a0/
LA  - ru
ID  - VMUMM_1982_5_a0
ER  -