%0 Journal Article %A I. Ya. Aref'eva %A I. V. Volovich %T Manifolds of constant negative curvature as vacuum solutions in Kaluza--Klein and superstring theories %J Teoretičeskaâ i matematičeskaâ fizika %D 1985 %P 329-336 %V 64 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1985_64_2_a14/ %G ru %F TMF_1985_64_2_a14