TY - JOUR AU - A. V. Litavrin TI - Subsystems and automorphisms of some finite magmas of order $k+k^2$ JO - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics PY - 2020 SP - 457 EP - 467 VL - 20 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ISU_2020_20_4_a4/ LA - ru ID - ISU_2020_20_4_a4 ER -