https://www.theguardian.com/global-development/2020/dec/17/arab-spring-people-middle-east-poll?utm_campaign=&utm_medium=z-boxiku&utm_source=www.seznam.cz

https://www.washingtonpost.com/weather/2020/12/10/iceberg-collision-south-georgia-island-penguins/

https://www.pdc.tv/players/rules-darts

https://www.bbc.com/sport/darts/55265100

https://www.wearethemighty.com/military-life/5-countries-that-tried-to-shoot-down-the-sr-71-blackbird-and-failed/

https://edition.cnn.com/style/article/sr-71-blackbird-spy-plane-design/index.html

https://migflug.com/jetflights/the-10-fastest-aircraft-in-the-world/