2005/2006 Guide utility radio stations : worldwide HF communication today / ed. Klingenfuss Publications
2009/2010 Guide utility radio stations : worldwide HF communication today / ed. Klingenfuss Publications
2015/2016 Guide to utility radio stations : professional HF communication today / ed. Klingenfuss Publications
2017/2018 Guide to utility radio stations : professional HF communication today / ed. Klingenfuss Publications