%0 Journal Article %A V. V. Vishnevskii %T Manifolds over plural numbers and semitangent structures %J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara %D 1988 %P 35-74 %V 20 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTG_1988_20_a1/ %G ru %F INTG_1988_20_a1