%0 Journal Article %A B. S. Pavlov %T Non-physical sheet for the Friedrichs model %J Zapiski Nauchnykh Seminarov POMI %D 1992 %P 149-155 %V 200 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1992_200_a14/ %G ru %F ZNSL_1992_200_a14