TY  - BOOK
AU  - Sakhnovich, Lev A. 
TI  - Spectral theory of canonical differential systems. Method of operator identities
SN  - 9783764360573 
U1  - 510 
PY  - 1999///
CY  - Berlin
PB  - Birkahauser
KW  - Spectral theory (Mathematics); Factorization of operators
ER  -