TY - JOUR AU - B. S. Kruglikov TI - Exact classification of divergence-free nondivergent vector fields on surfaces of small genus JO - Matematičeskie zametki PY - 1999 SP - 336 EP - 353 VL - 65 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1999_65_3_a1/ LA - ru ID - MZM_1999_65_3_a1 ER -