TY  - JOUR
AU  - P. P. Zabreiko
AU  - M. A. Krasnosel'skii
TI  - On $L$-characteristics of operators
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1964
VL  - 19
IS  - 5
UR  - http://geodesic.mathdoc.fr/item/RM_1964_19_5_a14/
LA  - ru
ID  - RM_1964_19_5_a14
ER  -