%0 Journal Article %A M. I. Kyurshina %A A. V. Yakovlev %T $T$-forms and their properties %J Zapiski Nauchnykh Seminarov POMI %D 1999 %P 229-236 %V 265 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1999_265_a16/ %G ru %F ZNSL_1999_265_a16