%0 Journal Article %A V. P. Maslov %A O. Yu. Shvedov %T Spectral problems with an operator-valued symbol in quantum field %J Doklady Akademii Nauk %D 1996 %P 312-314 %V 350 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1996_350_3_a5/ %G ru %F DAN_1996_350_3_a5