Smirnov, George M. <br/><br/>
Oscillation theory of optimal processes 
/ by George M. Smirnov 
 - New York:  Wiley,   1984. 
 - x, 154p.; 24 cm. 
<br/><br/><label>ISBN: </label>0471893994 
<br/><br/><label>Dewey Class. No.: </label>512  / SMI/O