%0 Journal Article %A Gil’, Michael %T Resolvent and spectrum of a nonselfadjoint differential operator in a Hilbert space %J Annales Universitatis Mariae Curie-Skłodowska. Mathematica %D 2012 %V 66 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUM_2012_66_1_a6/ %G en %F AUM_2012_66_1_a6