TY - JOUR AU - A. A. Voronenko TI - On the universality of product for classes of linear functions of two variables JO - Diskretnaya Matematika PY - 2022 SP - 20 EP - 22 VL - 34 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DM_2022_34_1_a1/ LA - ru ID - DM_2022_34_1_a1 ER -