TY  - JOUR
AU  - V. I. Ruban
TI  - Even diameters of the classes $W^{(r)}H_\omega$ in the space $C_2\pi$
JO  - Matematičeskie zametki
PY  - 1974
SP  - 387
EP  - 392
VL  - 15
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1974_15_3_a4/
LA  - ru
ID  - MZM_1974_15_3_a4
ER  -