नॉर्थ्रोप ग्रूमैन बी-21 रायडर (Hindi Wikipedia)

Analysis of information sources in references of the Wikipedia article "नॉर्थ्रोप ग्रूमैन बी-21 रायडर" in Hindi language version.

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af.mil

Gulick, Ed (12 July 2014). "AF moves forward with future bomber". U.S. Air Force. मूल से 6 फ़रवरी 2017 को पुरालेखित. अभिगमन तिथि 30 मई 2018.

Jeremiah Gertler (7 June 2017). "Air Force B-21 Raider Long-Range Strike Bomber". Congressional Research Service (CRS). अभिगमन तिथि 23 January 2018. B-21s would initially replace aging B-1 and B-52 bombers, and would possibly replace B-2s in the future.^{[मृत कड़ियाँ]}

"US Air Force requests $156.3 billion in FY19, plans to retire B-1, B-2 fleets". Defense News. 12 February 2018. अभिगमन तिथि 13 February 2018.

Gertler, Jeremiah (2017-06-17). "Air Force B-21 Raider Long-Range Strike Bomber" (PDF). Congressional Research Service. मूल से 5 दिसंबर 2017 को पुरालेखित (PDF). अभिगमन तिथि 2018-03-25.

Petersen, Melody (7 February 2015). "New stealth bomber contract likely to be boon for Antelope Valley". The LA Times. मूल से 12 जून 2018 को पुरालेखित. अभिगमन तिथि 30 मई 2018.

Osborn, Kris. "The Northrop Grumman B-21 Stealth Bomber: Simply Unstoppable?". The National Interest. मूल से 29 मई 2018 को पुरालेखित. अभिगमन तिथि 30 मई 2018.

"New B-21 bomber named 'Raider': U.S. Air Force". Reuters. 19 September 2016. मूल से 23 अप्रैल 2017 को पुरालेखित. अभिगमन तिथि 23 April 2017. The stealth B-21, the first new U.S. bomber of the 21st century, is part of an effort to replace the Air Force's aging B-52 and B-1 bombers, though it is not slated to be ready for combat use before 2025.

Gertler, Jeremiah (2017-06-17). "Air Force B-21 Raider Long-Range Strike Bomber" (PDF). Congressional Research Service. मूल से 5 दिसंबर 2017 को पुरालेखित (PDF). अभिगमन तिथि 2018-03-25.
Gulick, Ed (12 July 2014). "AF moves forward with future bomber". U.S. Air Force. मूल से 6 फ़रवरी 2017 को पुरालेखित. अभिगमन तिथि 30 मई 2018.
Petersen, Melody (7 February 2015). "New stealth bomber contract likely to be boon for Antelope Valley". The LA Times. मूल से 12 जून 2018 को पुरालेखित. अभिगमन तिथि 30 मई 2018.
Osborn, Kris. "The Northrop Grumman B-21 Stealth Bomber: Simply Unstoppable?". The National Interest. मूल से 29 मई 2018 को पुरालेखित. अभिगमन तिथि 30 मई 2018.
"New B-21 bomber named 'Raider': U.S. Air Force". Reuters. 19 September 2016. मूल से 23 अप्रैल 2017 को पुरालेखित. अभिगमन तिथि 23 April 2017. The stealth B-21, the first new U.S. bomber of the 21st century, is part of an effort to replace the Air Force's aging B-52 and B-1 bombers, though it is not slated to be ready for combat use before 2025.

Jeremiah Gertler (7 June 2017). "Air Force B-21 Raider Long-Range Strike Bomber". Congressional Research Service (CRS). अभिगमन तिथि 23 January 2018. B-21s would initially replace aging B-1 and B-52 bombers, and would possibly replace B-2s in the future.^{[मृत कड़ियाँ]}