Bibikov, Yuri N. <br/><br/>
Lecture Notes in Mathematics 
/by Yuri N. Bibikov 
 - New York:  Springer-Verlag;  1979. 
 - 144p. 
<br/><br/><label>ISBN: </label>3-540-09114-9 
<br/><br/><label>Dewey Class. No.: </label>515.3  / BIB/L