TY  - JOUR
AU  - V. V. Tikhomirov
TI  - On the Riesz means of expansion in eigenfunctions and associated functions of a~nonselfadjoint ordinary differntial operator
JO  - Sbornik. Mathematics
PY  - 1977
SP  - 29
EP  - 48
VL  - 31
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1977_31_1_a2/
LA  - en
ID  - SM_1977_31_1_a2
ER  -