Levitan, Boris Moiseevich. <br/><br/>
Introduction to spectral theory:  selfadjoint ordinary differential operators/ 
by B. M. Levitan and I. S. Sargsjan. 
 - Providence, R.I.:  American Mathematical Society,  1975. 
 - xi, 525 p.;  24 cm. 
 - Translations of mathematical monographs;  v. 39. .
<br/><br/>Bibliography: p. 518-525. 
<br/><br/><label>ISBN: </label>082181589X 
<br/><br/><label>LCCN: </label>75015565 //r892 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boundary value problems.<br/>Spectral theory (Mathematics).<br/>Selfadjoint operators.<br/>Differential operators.<br/>Operadores (Analise Funcional)
<br/><br/><label>Dewey Class. No.: </label>515.7222  / L666i