%0 Journal Article %A Agranovich, M.S. %A Amosov, B.A. %T On Fourier series in eigenfunctions of elliptic boundary value problems. %J Georgian Mathematical Journal %D 2003 %P 401-410 %V 10 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/GMJ_2003__10_3_51039/ %G en %F GMJ_2003__10_3_51039