[1] Wikipedia Article on Caesar Cipher

[2]  Source code for Caesar Library written by Valerio Capozio   

[3]  Jazzy Java spelling checker    

[4] Project Gutenberg http://www.gutenberg.org/

[5] Wikipedia Article on Cryptography

[6] Wikipedia Ariticle on Substitution Ciphers

[7] Passage from Project Gutenberg http://www.gutenberg.org/files/964/964.txt ``The Merry Adventures of Robin Hood" by Howard Pyle Release Date: February 5, 2006 [EBook #964]

[8] Wikipedia Article on Java

[9] Wikipedia Article on Algebra