Varchenko A.N. <br/><br/>
Why the Boundary of a Round Drop Becomes a Curve of Order Four  University Lecture Series Vol-3 
/ by A.N.Varchenko 
 - Island  American Mathematical Society  1992 
 - 72p. 
<br/><br/><label>ISBN: </label>0821870025 
<br/><br/><label>Dewey Class. No.: </label>515.62  / VER/W