1. Key figures of Greek Tourism (2019) https://sete.gr/el/stratigiki-gia-ton-tourismo/vasika-megethi-tou-ellinikoy-tourismoy/
2. WTTC: Travel & Tourism Sector will be critical to powering Turkey’s economic recovery. https://ftnnews.com/news-from-turkey/39492-wttc-travel-tourism-sector-will-be-critical-to-powering-turkey-s-economic-recovery
3. Mattarocci G, Siligardos G. Tourism in Greece: main characteristics in foreign and internal demand. https://www.researchgate.net/publication/228761917_Tourism_in_Greece_main_characteristics_in_foreign_and_internal_demand
4. 2000–2006 ELSTAT data. http://www.gnto.gov.gr/sites/default/files/files_basic_pages/Analisi_touristikis_kinisis_2001-2010.pdf. 2007–2019 Bank of Greece data
5. Gunay S, Yüncü D, Kantar YM (2017) Spatial distribution of occupancy rate in the hospitality sector in Turkey according to international and domestic tourist arrivals. https://www.researchgate.net/publication/309079014_Spatial_Distribution_of_Occupancy_Rate_in_the_Hospitality_Sector_in_Turkey_According_to_International_and_Domestic_Tourist_Arrivals