TY  - BOOK
AU  - Naimark, M. A.
AU  - Ruhs, Fritz
TI  - Lineare differentialoperatoren
U1  - 517.38 
PY  - 1960///
CY  - Berlin
PB  - Akademie-Verlag
KW  - Differential Equations, Linear
N1  - Translation Of Lineinye Differentsial'Nye Operatory
ER  -