TY  - JOUR
AU  - E. A. Lifshits
TI  - Positively reproducing and positively normal operators
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1972
SP  - 19
EP  - 23
VL  - 6
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1972_6_1_a3/
LA  - ru
ID  - FAA_1972_6_1_a3
ER  -