The [[IAB|Internet Activities Board]] is the parent organization of the IRTF, and [[IETF|Internet Engineering Task Force]] is its sister organization.<ref>[http://www.isoc.org/internet/history/cerf.shtml isoc.org]</ref> | The [[IAB|Internet Activities Board]] is the parent organization of the IRTF, and [[IETF|Internet Engineering Task Force]] is its sister organization.<ref>[http://www.isoc.org/internet/history/cerf.shtml isoc.org]</ref> |