%0 Journal Article %A V. P. Maslov %A V. G. Danilov %T Quasiinvertibility of functions of ordered operators in the theory of pseudodifferential equations %J Itogi Nauki i Tekhniki. Seriya Sovremennye Problemy Matematiki. Noveishie Dostizheniya %D 1976 %P 5-132 %V 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTD_1976_6_a0/ %G ru %F INTD_1976_6_a0