%0 Journal Article %A R. Miyaoka %T Hypersurface geometry and hamiltonian systems of hydrodynamic type %J Lobachevskii journal of mathematics %D 1999 %P 209-220 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/LJM_1999_3_a11/ %G en %F LJM_1999_3_a11