https://www.lynxdxg.com/concursocw/ficheros/bases_vertical_2023.pdf ...

https://bartg.org.uk/wp/wp-content/uploads/2022/12/bartg-psk63-rules-2023-v2.pdf https://bartg.org.uk/wp/bartg-sprint-PSK63-contest/ ...

https://www.sactest.net/blog/rules/ ...

https://www.comarques.cat/bases.html#es ...

https://www.darc.de/der-club/referate/conteste/wae-dx-contest/en/wae-rules/ ...

https://contests.arrl.org/ContestRules/EME-Rules.pdf ...

https://www.jarl.org/English/4_Library/A-4-3_Contests/2023AA_rule.htm ...

https://www.iaru-r1.org/about-us/committees-and-working-groups/vhf-uhf-shf-committee-c5/vhf-up-contesting/ https://www.iaru-r1.org/wp-content/uploads/2021/03/Rules-2021.pdf ...

https://ww-digi.com/rules/ https://ww-digi.com/ ...

https://kcj-cw.com/contest/rule/2023_44_kcj_dx_.pdf ...