1. Microsoft Office, From Wikipedia, the free encyclopaedia.
http://en.wikipedia.org/wiki/Microsoft_Office
2. Supercomputer, From Wikipedia, the free encyclopaedia.
http://en.wikipedia.org/wiki/Supercomputer
3. OpenOffice.org’s Documentation of the Microsoft Compound Document File Format.
http://sc.openoffice.org/compdocfileformat.pdf
4. Wu H (2005) The misuse of RC4 in Microsoft Word and Excel. Institute for Infocomm Research, Singapore, p 2
5. Wang P, You L, Tian J, Gao Z (2013) Word document decryption based on GPU. Inf Technol 2013(4):52–153 (in Chinese)