TY  - BOOK
AU  - Berthifr A M
TI  - Spectural theory and wave operators for the schrodinger equation
T2  - Research notes in mathematics; 71
U1  - B48, M2 
PY  - 1982///
CY  - Boston
PB  - Pitman Advanced Publishers       
KW  -  Wave operators
KW  - Operational
ER  -