%0 Journal Article %A S. B. Kadomtsev %T The impossibility of some special isometric immersions of Lobachevskii spaces %J Sbornik. Mathematics %D 1979 %P 461-480 %V 35 %N 4 %U http://geodesic.mathdoc.fr/item/SM_1979_35_4_a1/ %G en %F SM_1979_35_4_a1