Schouten, J. A.  1883- <br/><br/>
Pfaff's problem and its generalizations / 
by J.A. Schouten and W. v.d. Kulk. 
 - Oxford :  Clarendon Press,  c1949. 
 - xvi, 542 p. ;  25 cm. 
<br/><br/>Includes bibliography & index: p. [534]-536. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pfaff's problem.
<br/><br/><label>Dewey Class. No.: </label>516.36  / SCP 1949