%0 Journal Article %A S.Ya. Yakubov %T Noncoercive boundary value problems for the Lapace equation with a spectral parameter. %J Semigroup forum %D 1996 %P 298-316 %V 53 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1996__53_2_135493/ %F SF_1996__53_2_135493