%0 Journal Article %A Kh. D. Ikramov %T Verifying unitary congruence of coninvolutions, skew-coninvolutions, and connilpotent matrices of index two %J Zapiski Nauchnykh Seminarov POMI %D 2009 %P 27-32 %V 367 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2009_367_a2/ %G ru %F ZNSL_2009_367_a2