NASA Technical Reports Server (NTRS)

https://ntrs.nasa.gov/citations/20205009400 

Skydweller Aero readies for first autonomous flight

https://www-janes-com.cdn.ampproject.org/c/s/www.janes.com/amp/skydweller-aero-readies-for-first-autonomous-flight/ZnlJK3dHVU9mZ28xajRJVkc5dVI5VFp1cVMwPQ2 

EASA proposes use of new technologies to support all-weather operations | EASA

https://www.easa.europa.eu/newsroom-and-events/press-releases/easa-proposes-use-new-technologies-support-all-weather?fbclid=IwAR0GO3bc6uV51GMM2BSgxw4jONVUOpnkyRm0KdHjrzA_2HyDSYBylaXoWfM 

Qatar Airways says Airbus spat risks 'industrial repercussions' | Reuters

https://www.reuters.com/world/middle-east/qatar-airways-says-airbus-spat-risks-industrial-repercusssions-2021-06-03/ 

Air Taxi Startup Joby Plans 2024 Launch and Going Public Via a SPAC - Bloomberg

https://www.bloomberg.com/news/articles/2021-06-02/air-taxi-startup-joby-plans-2024-launch-and-going-public-via-a-spac