Greek Travel Portal - An official travel portal providing guidelines and updates for visitors to Greece.
https://travel.gov.gr/#/
Karolos Papoulias - An encyclopedia article about the President of Greece.
https://en.wikipedia.org/wiki/Karolos_Papoulias
National Telecommunications and Post Commission - EETT is the National Regulatory Authority, which supervises and regulates the telecommunications as well as the postal services.
https://www.eett.gr/
