https://www.iaru-r1.org/wp-content/uploads/2021/03/Rules-2021.pdf ...

https://jsfc.org/apsprint/ https://jsfc.org/apsprint/aprule.txt ...

http://gacw.ar/index.php/category/concursos/ ...

http://gacw.ar/index.php/category/concursos/ ...

https://www.iaru-r1.org/wp-content/uploads/2019/08/ATV-Contest-rules.pdf ...

https://www.iaru-r1.org/wp-content/uploads/2019/08/ATV-Contest-rules.pdf ...

http://www.drcg.de/drcgww/drcg-ww-rtty-english.html ...

http://www.drcg.de/drcgww/drcg-ww-rtty-english.html ...

https://portugaldaycontest.rep.pt/rules.php ...

https://portugaldaycontest.rep.pt/rules.php ...