TY  - JOUR
AU  - G. M. Kesel'man
AU  - V. È. Lyantse
TI  - The expansion in principal functions of a nonselfadjoint differential operator of order $2n$ with spectral singularities
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 497
EP  - 512
VL  - 6
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_3_a11/
LA  - ru
ID  - DE_1970_6_3_a11
ER  -