Gomar Thomas; Warner ten Kate; Craig Finseth. <a href="http://www.w3.org/TR/1999/NOTE-TVWeb-URI-Requirements-19991021"><cite>TV Broadcast URI Schemes Requirements.</cite></a> 21 October 1999. W3C Note. URL: <a href="http://www.w3.org/TR/1999/NOTE-TVWeb-URI-Requirements-19991021">http://www.w3.org/TR/1999/NOTE-TVWeb-URI-Requirements-19991021</a>