Berthier, A. M. <br/><br/>
Spectral theory and wave operators for the schrodinger equations   

 - Boston  Pitman  1982 
 - 306p. Index, Bibl. 
 - Research notes in Mathematics   v. 71 .
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<br/><br/><label>Dewey Class. No.: </label>530.1  / B541.ST