TY - JOUR AU - V. I. Skobelkin TI - Variation principles in determining the main characteristics of a ferromagnetic by the calculation of its hysteresis loop JO - Doklady Akademii Nauk PY - 1960 SP - 1012 EP - 1014 VL - 130 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_130_5_a15/ LA - ru ID - DAN_1960_130_5_a15 ER -