Hartman, Philip,   1915- <br/><br/>
Ordinary differential equations / 
Philip Hartman. 
 - New York :  John Wiley & Sons ;  1964 
 - xiv, 612 p. :   ill. ;   24 cm. 
<br/><br/>Bibliography: p. 581-605. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations