%0 Journal Article %A Mitsuru Nakai %A Leo Sario %T Classification and Deformation of Riemannian Spaces. %J Mathematica Scandinavica %D 1967 %P 193-208 %V 20 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1967__20_165990/ %F MS2_1967__20_165990