British Rail Class 801 (English Wikipedia)

Department for Transport; McLoughlin, Patrick (18 July 2013). "Government gives green light for more state-of-the-art intercity trains". GOV.UK (Press release). Retrieved 2 January 2020.

hitachi.com

Rogers, Andrew; Robinson, Chris; Agatsuma, Koji; Iwasaki, Mitsuo; Inarida, Satoru; Yamamoto, Takahisa; Konishi, Kenta; Mochida, Toshihiko (2014). "Development of Class 800/801 High-speed Rolling Stock for UK Intercity Express Programme" (PDF). Hitachi Review. 63 (10): 646.

"AT300 - Intercity High Speed". London: Hitachi Rail. Archived from the original on 21 February 2020. Retrieved 31 March 2019.

"LNER Introduces 'Our Planet':The Named Train Championing Sustainable Travel". London North Eastern Railway (Press release). 22 September 2024. Retrieved 24 September 2024.
"LNER's New V.I.P Eleanor Gets Her Very Own Train" (Press release). London North Eastern Railway. Retrieved 13 February 2024.
"Journey of a Century: LNER Launches First Named Azuma Train Celebrating 100 Years" (Press release). London North Eastern Railway. Retrieved 15 May 2023.

MTU Diesel Engine 12V 1600 for Railcar Applications (EU Stage IIIB) (PDF) (01/19 ed.). Friedrichshafen: Rolls-Royce Power Systems AG. 17 December 2020. 32310481. Archived (PDF) from the original on 14 May 2022. Retrieved 20 January 2022.

Barrow, Keith (15 January 2014). "Hitachi gains TSI certification for onboard ETCS". International Railway Journal. Simmons-Boardman Publishing. Retrieved 8 November 2022.

Clinnick, Richard (27 February 2019). "EXCLUSIVE: ECML go-ahead for Azumas, but modifications still needed". Rail Magazine. Peterborough: Bauer Consumer Media. Retrieved 8 November 2022.
"September 16 launch for Class 801 Azumas on London-Leeds route". www.railmagazine.com. Retrieved 11 November 2020.
"Hitachi converts GWR '801s' to bi-mode operation". Rail. 8 June 2016.
Clinnick, R. (1 August 2019). "September 16 launch for Class 801 Azumas on London-Leeds route". Rail Magazine. Peterborough: Bauer Consumer Media. Retrieved 11 June 2023.

MTU Rail Power for the UK & Ireland (PDF). MTU Friedrichshafen GmbH. September 2018. p. 2. Archived (PDF) from the original on 3 December 2022. Retrieved 3 December 2022.

Butcher, S. (25 September 2020). "East Coast HST finale". The Railway Hub. Horncastle: Mortons Media Group. Retrieved 16 November 2020.

MTU Rail Power for the UK & Ireland (PDF). MTU Friedrichshafen GmbH. September 2018. p. 2. Archived (PDF) from the original on 3 December 2022. Retrieved 3 December 2022.
MTU Diesel Engine 12V 1600 for Railcar Applications (EU Stage IIIB) (PDF) (01/19 ed.). Friedrichshafen: Rolls-Royce Power Systems AG. 17 December 2020. 32310481. Archived (PDF) from the original on 14 May 2022. Retrieved 20 January 2022.
"AT300 - Intercity High Speed". London: Hitachi Rail. Archived from the original on 21 February 2020. Retrieved 31 March 2019.

London North Eastern Railway [@lner] (16 September 2019). "Our first 10-car Azuma has entered service today" (Tweet) – via Twitter.