%0 Journal Article %A F. M. Malyshev %T Realization of even permutations of even degree by products of four involutions without fixed points %J Diskretnaya Matematika %D 2023 %P 18-33 %V 35 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_2023_35_2_a1/ %G ru %F DM_2023_35_2_a1