%0 Journal Article %A Viacheslav V. Nikulin %T Classification of Degenerations of Codimension ${\le }\,5$ and Their Picard Lattices for K\"ahlerian K3 Surfaces with the Symplectic Automorphism Group $(C_2)^2$ %J Informatics and Automation %D 2023 %P 189-242 %V 320 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2023_320_a8/ %G ru %F TRSPY_2023_320_a8