Seminar on differential equations and dynamical systems   
ed. by G.Stephen Jones 
 - Berlin  Springer-Verlag  1968 
 - 105p. 
 - Lecture Notes in Mathematics  60 .
<br/><br/><label>LCCN: </label>68-31622 
<br/><br/><label>Dewey Class. No.: </label>515.35  / N6812