Lions International Stamp Club LISC Titterington, Bob G3ORY (2001). "A Newcomer's View of ARDF". Retrieved Dec. 2, 2005. Titterington, Bob G3ORY, Williams, David M3WDD and Deane, David G3ZOI (2007) "Radio Orienteering, The ARDF Handbook", Radio Society of Great Britain. . External links ARDF organizations International Amateur Radio Union (IARU) ARDF in IARU Region I ARDF in IARU Region II ARDF in IARU Region III ARDF Events 2012 ARDF World Championships 2010 ARDF World Championships 2008 ARDF World Championships 2006 ARDF World Championships 2004 ARDF World Championships ARDF Information ARDF web sites of IARU member societies (Region I) ARDF web sites organized by country Radio orienteering simulator RASOR web site of german ardf group ARDF-world-map and ARDF Films Orienteering Radio navigation Radiosport 1950s introductions