TY - JOUR AU - Vit. V. Volchkov AU - N. P. Volchkova TI - Vector fields with zero flux through spheres of fixed radius JO - Vladikavkazskij matematičeskij žurnal PY - 2018 SP - 20 EP - 34 VL - 20 IS - 4 UR - http://geodesic.mathdoc.fr/item/VMJ_2018_20_4_a1/ LA - ru ID - VMJ_2018_20_4_a1 ER -