TY - JOUR AU - È. È. Shnol' TI - On approximation of curves by level curves of homogeneous polynomials, and on series in homogeneous polynomials JO - Sbornik. Mathematics PY - 1992 SP - 403 EP - 411 VL - 72 IS - 2 UR - http://geodesic.mathdoc.fr/item/SM_1992_72_2_a7/ LA - en ID - SM_1992_72_2_a7 ER -