%0 Journal Article %A N. V. Ilyushechkin %T On some identities for the elements of a~symmetric matrix %J Zapiski Nauchnykh Seminarov POMI %D 2003 %P 119-144 %V 303 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2003_303_a6/ %G ru %F ZNSL_2003_303_a6