%0 Journal Article %A D. V. Gribanov %A D. S. Malyshev %T Minimization of even conic functions on~the~two-dimensional integral lattice %J Diskretnyj analiz i issledovanie operacij %D 2020 %P 17-42 %V 27 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DA_2020_27_1_a1/ %G ru %F DA_2020_27_1_a1