@article{ZNSL_2009_367_a2,
     author = {Kh. D. Ikramov},
     title = {Verifying unitary congruence of coninvolutions, skew-coninvolutions, and connilpotent matrices of index two},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {27--32},
     year = {2009},
     volume = {367},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2009_367_a2/}
}