TY - JOUR AU - A. G. Aleksandrov TI - The Index of Vector Fields and Logarithmic Differential Forms JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 2005 SP - 1 EP - 13 VL - 39 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_2005_39_4_a0/ LA - ru ID - FAA_2005_39_4_a0 ER -