Weisstein, Eric W <br/><br/>
CRC concise encyclopedia of mathematics / 
Eric W. Weisstein. 
 - 2nd. ed 
 - Boca Raton, FL :  Chapman & Hall/CRC,  2003. 
 - [7], 3242 p. :  ill. 
<br/><br/>Includes bibliogr. references 
<br/><br/><label>ISBN: </label>1-58488-347-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Encyclopedias