https://larouchepub.com/eiw/public/1978/eirv05n39-19781010/eirv05n39-19781010_050-the_rothschild_roots_of_the_ku_k.pdf

http://www.arrl.org/news/cq-china

http://www.echolink.org/

https://en.wikipedia.org/wiki/CQ_(call)