TY  - JOUR
AU  - V. V. Lebedev
TI  - Diffeomorphisms of the Circle and the Beurling--Helson Theorem
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 2002
SP  - 30
EP  - 35
VL  - 36
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_2002_36_1_a2/
LA  - ru
ID  - FAA_2002_36_1_a2
ER  -