https://air-radiorama.blogspot.com/2013/07/contest-iaru-hf-2013-e-nazionale.html
AIR - RADIORAMA: Contest IARU HF 2013 e nazionale italiana ARI I0xH 13-14 Luglio 2013-...
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https://uska.ch/en/iaru-hf-championship/?lang=en
IARU HF Championship
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https://www.dxzone.com/dx20819/2009-iaru-hf-contest.html
2009 IARU HF Contest - DX Resources/Contest/Contest Rules | The DXZone
2009 IARU HF World Championship Contest Rules
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