Berners-Lee, T., et. al., "Uniform Resource Locators (URL)", RFC 1738, CERN, December 1994, http://www.internic.net/rfc/rfc1738.txt
Fielding, R., "Relative Uniform Resource Locators", RFC 1808, UC Irvine, June 1995, http://www.internic.net/rfc/rfc1808.txt
Fielding, R., et. al., "Hypertext Transfer Protocol -- HTTP/1.1", RFC 2068, UC Irvine, January 1997, http://www.internic.net/rfc/rfc2068.txt