TY  - JOUR
AU  - V. A. Il'in
TI  - A necessary condition for equiconvergence of the trigonometric series and of a spectral expansion for an arbitrary integrable function
JO  - Differencialʹnye uravneniâ
PY  - 1985
SP  - 371
EP  - 379
VL  - 21
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1985_21_3_a0/
LA  - ru
ID  - DE_1985_21_3_a0
ER  -