Ono, Takashi. <br/><br/>
Variations on a theme of Euler:  quadratic forms, elliptic curves, and Hopf maps/ 
Takashi Ono. 
 - New York:  Plenum Press,  c1994. 
 - xi, 347 p.:  ill.;  24 cm. 
 - The university series in mathematics. .
 - University series in mathematics (Plenum Press). .
<br/><br/> Updated text in English of the 1980 Japanese ed. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0306447894 
<br/><br/><label>LCCN: </label>94036378 //r95 
<br/><br/><label>Nat. Bib. No.: </label>GB95-6427 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forms, Quadratic.<br/>Curves, Elliptic.<br/>Number theory.
<br/><br/><label>Dewey Class. No.: </label>512.74  / O58v