TY  - JOUR
AU  - M. G. Grigoryan
TI  - On convergence of Fourier series in complete orthonormal systems in the $L^1$-metric and almost everywhere
JO  - Sbornik. Mathematics
PY  - 1991
SP  - 445
EP  - 466
VL  - 70
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1991_70_2_a7/
LA  - en
ID  - SM_1991_70_2_a7
ER  -