%0 Journal Article %A I. A. Kulguskin %T Involutions in the algebra of upper triangular matrices over the ring of algebraic integers of quadratic fields %J Čebyševskij sbornik %D 2023 %P 85-111 %V 24 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2023_24_5_a5/ %G ru %F CHEB_2023_24_5_a5