Strebel, Kurt  <br/><br/>
Quadratic differentials / 
Kurt Strebel. 
 - Berlin:  Springer-Verlag,  1984. 
 - 184 p. ;   25 cm. 
<br/><br/><label>ISBN: </label>3540130357 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Equations, Quadratic.<br/>Differential equations.