Ralph Holland: citations
- media:2016-PROCEEDINGS of the International Conference on “Microwave and THz Technologies, Photonics and Wireless Communications.pdf [1]
- media:W4NRL L. B. Cebik The All-Band Center-Fed Inverted-L.pdf[2]
- https://www.nonstopsystems.com/radio/pdf-ant/article-short-verts-VK1.pdf
- https://worldradiohistory.com/hd2/IDX-AUSTRALIA/IDX/Amateur-Radio/90s/Amateur-Radio-AU-1996630.pdf
- media:Frank 20m half size yagi.pdf[3]
- https://www.qsl.net/yo4aul/siteyo/antprojects.htm