Air Passenger Market Analysis December 2020: Passenger vol­umes did not improve in December (IATA), https://www.iata.org/en/iata-repository/publications/economic-reports/air-passenger-monthly-analysis---december-2020/
China’s Guangzhou airport crowns itself the world’s busiest for 2020, Hong Kong traffic seen to tumble further with air­crew quarantine order, https://asia.nikkei.com/Business/Transportation/China-s-Guangzhou-airport-crowns-itself-the-world-s-busiest-for-2020  [access: 25.01.2021].
Dunn Graham. Traffic data shows how pandemic upset tradi­tional hub dominance in 2020, https://www.flightglobal.com/networks/traffic-data-shows-how-pandemic-upset-traditional-hub-dominance-in-2020/142153.article?fbclid=IwAR3WVmHGsOIXMkCBHqg8Kxywj7P1VZeILne_fpiKzBLUrANDbbuQneTvL50  [access: 2.02.2021].
Tarkhov S.A., 2015, Izmeneniye svyaznostiprostranstva Rossii (na primere aviapassazhirskogo soobshcheniya Moscow-Smolensk.
Tarkhov S.A., 2017, Changes in air transport connectivity of Russian cities in 1990-2015, Regional Research of Russia, 7(2), 127-145.
Statistical Data
2020 Worst Year in History for Air Travel Demand, https://www.iata.org/en/pressroom/pr/2021-02-03-02/
http://www.airportsbase.com/index.php?Page=Statistics&Type=Busiest%20countries&w=Pax&y=2018  – airport statistics by country
https://avia.gov.ua/pro-nas/statistika/operativna-informat­siya/  – statistics of air transportation of Ukraine for 2020
https://www.aviation24.be/airports/bordeaux-bod/bor­deaux-airport-2020-review-70-6-fewer-passengers-and-outlook-for-2021/  – Bordeaux airport statistics for 2020
https://www.aviationpros.com/airports/news/21207990/air-traffic-down-almost-70-on-bucharest-airports-in-2020  – decline in passenger turnover at Bucharest airports in 2020
https://www.belta.by/society/view/passazhiropotok-natsionalnogo-aeroporta-minsk-v-2019-godu-uvelichilsja-na-125-376052-2020/#:~:text=%D0%9D%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9%20%D0%B0%D1%8D%D1%80%D0%BE%D0%BF%D0%BE%D1%80%D1%82%20%D0%9C%D0%B8%D0%BD%D1%81%D0%BA%20%D0%B7%D0%B0%202019,%D0%BF%D0%BE%20%D0%BE%D1%82%D0%BD%D0%BE%D1%88%D0%B5%D0%BD%D0%B8%D1%8E%20%D0%BA%202018%20%D0%B3%D0%BE%D0%B4%D1%83 . – Minsk airport statistics 2019
https://www.berlin-airport.de/en/_documents/press/basis­informationen/verkehrsstatistik/2020/2020-12-BER-EN.pdf  – Berlin airport statistics for 2019-2020
https://www.bfs.admin.ch/bfs/de/home/statistiken/mobil­itaet-verkehr.assetdetail.14347287.html  – Switzerland airport statistics for 2019
https://www.bts.aero/o-letisku/press/tlacove-spravy/letisko-m-r-stefanika-vybavilo-vlani-405-tisic-cestujucich/  – Bratislava airport statistics for 2019-2020
https://www.cph.dk/en/about-cph/investor/traffic-statistics/2021/1/worst%20year%20since%201970%20cph%20lost%2022.7%20million%20passengers  – statistics of all airports in Denmark for 2019-20
https://dailynewshungary.com/budapest-airport-passenger-numbers-decline-76-pc-in-2020/  – Budapest airport statistics 2020
https://en.wikipedia.org/wiki/List_of_busiest_airports_in_the_Former_Yugoslav_Republics  – statistics of airports in the countries of the former Yugoslavia for 2011-2020
https://www.flughafen-graz.at/unternehmen/zahlen-fakten/zahlen-daten-fakten.html  – statistics of Graz airport for 1990-2020
https://www.flughafen-stuttgart.de/unternehmen/zahlen-und-daten/  – statistics of Stuttgart airport for 2020
https://www.fraport.com/en/investors/traffic-figures.html  – statistics of airports in the Fraport group for 2019 (p.38)
https://www.fraport.com/en/investors/traffic-figures.html  – statistics of the airports of the Fraport group for 2020 (Frankfurt am Main, a number of airports in Greece, Brazil, Peru, Bulgaria, Antalya, Xi’an, St. Petersburg)
https://www.iata.org/en/publications/store/monthly-traffic-statistics/  – monthly statistics of air passenger traffic in the world IATA (paid)
https://infotrans.by/2021/01/20/passazhiropotok-v-naczionalnom-aeroportu-minsk-za-2020-g-upal-na-62/#:~:text=%D0%9E%D0%B4%D0%BD%D0%B0%D0%BA%D0%BE%2C%20%D0%B2%20%D1%86%D0%B5%D0%BB%D0%BE%D0%BC%20%D0%B7%D0%B0%202020,%D0%BC%D0%B5%D0%BD%D1%8C%D1%88%D0%B5%20%D1%87%D0%B5%D0%BC%20%D0%B2%202019%20%D0%B3%D0%BE%D0%B4%D1%83 . – Minsk airport statistics in 2020
https://www.innsbruck-airport.com/it/pressemit-teilung-bilanz-2020  - Innsbruck airport statistics in 2019-20
https://www.irishexaminer.com/news/munster/arid-40204523.html#:~:text=2%20million%20passengers.-,Just%20530%2C000%20people%20used%20the%20airport%20in%202020%2C%20with%20the,Managing%20Director%20of%20Cork%20Airport . – Cork airport statistics in 2020
https://www.katowice-airport.com/en/our-airport/statistics/annual-statistics  – Katowice airport statistics
https://www.krakowairport.pl/en/airport,c94/news,c120/podsumowanie-2020-roku-w-krakow-airport,a3713.html  – statistics of Krakow airport for 2019-2020
https://www.ltou.lt/en/aviation/airports-statistics/vno-2  – airport statistics for 2017-2021
https://mintrans.news/avia/passazhiropotok-aeroporta-kharkov-snizilsya-za-god-na-51  – Kharkiv airport statistics for 2019-20
https://mintrans.news/avia/aeroport-lvov-zakonchil-god-bez-ubytkov  – Lviv airport statistics for 2019-20
https://www.parisaeroport.fr/docs/default-source/groupe-fichiers/finance/relations-investisseurs/trafic/2020/a%C3%A9roports-de-paris-sa---trafic-du-mois-de-d%C3%A9cembre-2020.pdf?sfvrsn=9673d3bd_2  – statistics of passenger turnover of Paris airports Charles de Gaulle, Orly, as well as other airports of the TAV group ADP for 2020 (ADP, “Annual statistics from Paris-Charles de Gaulle Airport”)
https://www.parisaeroport.fr/docs/default-source/groupe-fichiers/finance/a%C3%A9roports-de-paris-sa--december-2019-traffic-figures.pdf?sfvrsn=8c7cc1bd_2  – statistics of airports ADP group TAV for 2019
https://www.pasazer.com/statystyki-lotnisk/pl  – Poland airport statistics
https://www.riga-airport.com/uploads/2_RIX_Statistics%202020_Feb.pdf  – Riga airport statistics for February 2020
https://www.riga-airport.com/uploads/statis-tika/12_RIX_Statistics%202020_Dec.pdf  – Riga airport statistics for December 2020
https://www.schiphol.nl/en/schiphol-group/page/transport-and-traffic-statistics/  – statistics of airport Am­sterdam (Schiphol)
https://www.sofia-airport.bg/sites/default/files/en-passengers_2019-2020_11.pdf  – Sofia airport statistics for 2019-20 (monthly)
https://wwwssl.aena.es/csee/Satellite?pagename=Estadisticas/Home  – Spain airport statistics
https://www.swedavia.se/globalassets/statistik/fpl_202012tot.pdf  – Sweden airport statistics for 2020
https://www.swedavia.se/globalassets/statistik/fpl_201912.pdf  – Sweden airport statistics for 2019
https://www.skyscrapercity.com/threads/airport-statis­tics.262025/page-183#post-172568396  – preliminary figures on passenger turnover of 50 cities of the world with the largest airports in 2020
https://www.tallinn-airport.ee/wordpress/wp-content/uploads/2020/01/TLL-traffic-2019-short.pdf – Tallinn airport statistics
https://www.viennaairport.com/ – Vienna airport sta­tistics 2020