%0 Journal Article %A S. V. Tikhonov %T Quaternion algebras with unitary involutions having the same subfields %J Čebyševskij sbornik %D 2024 %P 226-235 %V 25 %N 3 %U http://geodesic.mathdoc.fr/item/CHEB_2024_25_3_a14/ %G ru %F CHEB_2024_25_3_a14