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allatelefonkataloger.com
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"International Call Sign Series". ARRL – The National Association for Amateur Radio. The National Association for Amateur Radio. Retrieved 1 October 2021.
Stan SQ8X (10 February 2008). "3Y0E is QRT". 3Y0E.wordpress.com. 3Y0E Bouvet Island December 2007 – February 2008. Archived from the original on 27 February 2018. Retrieved 26 February 2018.{{cite web}}: CS1 maint: numeric names: authors list (link)