%0 Journal Article %A Yu. V. Egorov %A V. A. Kondratiev %T Asymptotic behaviour of solutions of %J Sbornik. Mathematics %D 2008 %P 539-556 %V 199 %N 4 %U http://geodesic.mathdoc.fr/item/SM_2008_199_4_a3/ %G en %F SM_2008_199_4_a3