%0 Journal Article %A Yu. L. Shmul'yan %T Extended resolvents and extended spectral functions of a~Hermitian operator %J Sbornik. Mathematics %D 1971 %P 435-450 %V 13 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1971_13_3_a6/ %G en %F SM_1971_13_3_a6