TY  - JOUR
AU  - V. N. Karpushkin
TI  - Bounds for the Betti numbers of a level surface of a harmonic polynomial
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1992
SP  - 86
EP  - 88
VL  - 26
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1992_26_4_a13/
LA  - ru
ID  - FAA_1992_26_4_a13
ER  -