ARRL - U.S.A. Special Event Stations   Special event certificates and QSLs
Argentina - Special Prefixes and QSL Info
Brazil - Special Calls & QSL Managers
Canada - Special Event Callsigns
Great Britian Permanent Special Event Stations
Greek Special Calls  by SV2AEL
Radio Society of Great Britain's Centenary Stations  01 January - 31 December 2013
Special Event Station Hunter Award (SESH)  Polish Radio Amateurs' Journal "QTC"
Swedish Contest, Special Event, Anniversary and Special Calls