TY  - JOUR
AU  - V. A. Koshcheev
TI  - Chebyshev systems of functions and vector fields on spheres
JO  - Matematičeskie zametki
PY  - 1989
SP  - 22
EP  - 30
VL  - 46
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1989_46_3_a3/
LA  - ru
ID  - MZM_1989_46_3_a3
ER  -