Eastham, M. S. P. (Michael Stephen Patrick). <br/><br/>
The spectral theory of periodic differential equations 
M. S. P. Eastham. 
 - Edinburgh:  Scottish Academic Press,  1973. 
 - x, 130 pages;   23 cm. 
<br/><br/>Bibliography: p. 124-130. 
<br/><br/><label>ISBN: </label>0701119365 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Spectral theory (Mathematics).<br/>Schrodinger equation.