%0 Journal Article %A V. A. Rukavishnikov %T Differential properties of an $R_\nu$-generalized solution of %J Doklady Akademii Nauk %D 1989 %P 1318-1320 %V 309 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_309_6_a8/ %G ru %F DAN_1989_309_6_a8