Alexander ALX400 (English Wikipedia)

Williams, Mark (16 October 1997). "Stagecoach orders hundred Tridents". Coach & Bus Week. No. 291. Peterborough: Emap. p. 21. Retrieved 23 April 2024.
Aldridge, John (April 2000). "Low-floor Volvos - at last". Buses. No. 541. Hersham: Ian Allan Publishing. p. 14. Retrieved 23 April 2024.
"Volvo wins complete Dublin order". Buses. No. 541. Hersham: Ian Allan Publishing. April 2000. p. 6. Retrieved 23 April 2024.
Morris, Stephen (February 2000). "Road Test: Trident tested and found lacking in little". Buses. No. 539. Hersham: Ian Allan Publishing. pp. 26–29. Retrieved 23 April 2024.

belfasttelegraph.co.uk

"Double-deckers go back on city streets". Belfast Telegraph. 26 March 2001. Retrieved 6 April 2023.

books.google.com

Wharmby, Matthew (31 July 2021). The London Dennis Trident. Pen & Sword. ISBN 978-1-5267-8694-4. Retrieved 8 August 2021.
Beddall, David (30 August 2022). Cambus to Stagecoach East: A Fleet History, 1984–2020. Pen & Sword. p. 90. ISBN 978-1-5267-8103-1. Retrieved 30 May 2023.
Wharmby, Matthew (11 November 2021). The London Volvo B7TL. Pen & Sword. ISBN 978-1-52678-695-1. Retrieved 7 April 2023.
Walter, Richard (15 June 2019). Lothian Buses: 100 Years and Beyond. Stroud: Amberley Publishing. ISBN 978-1-4456-9190-9.
Lyons, Mark (30 June 2022). "Oxford Bus Company". The Go-Ahead Group: The First 25 Years. Key Publishing. p. 44. ISBN 978-1-80282-082-9. Retrieved 7 April 2023.

busandcoach.com

"Stagecoach launches partnership with Oxford Brookes". Bus & Coach Professional. 2003. Archived from the original on 29 December 2003. Retrieved 3 June 2023.
Brown, Stewart (24 March 2006). "Investing in Merseyside". Bus & Coach Professional. Archived from the original on 24 March 2006. Retrieved 14 July 2022.

cbwmagazine.com

Larkin, Nick (27 September 2022). "DLA desires". Coach & Bus Week. Peterborough. Retrieved 28 September 2022.
Larkin, Nick (5 December 2023). "Historic Trident restored". Coach & Bus Week. Peterborough. Retrieved 5 December 2023.

irishtimes.com

"Translink orders 200 new buses for NI fleet". The Irish Times. 20 April 2005. Retrieved 6 April 2023.

keybuses.com

Jenkins, David (16 May 2019). "A postcard from Eastbourne". Buses. No. 771. Stamford: Key Publishing. pp. 34–37. Retrieved 1 July 2023. The newest (and only low-floor) double-deckers were four nine-year-old DAF DB250s with Alexander ALX400 bodies that had been new to UK North in Manchester, which had also competed with Stagecoach.

proquest.com

search.proquest.com

McLean, Allan (20 May 1998). "Alexander unveils new design for buses". The Scotsman. Edinburgh. p. 24. ProQuest 326686904.
"Don't miss the bus on timetable changes". Hull Daily Mail. 17 April 2007. p. 13. ProQuest 333649110. The timetable changes also coincide with Stagecoach introducing new high-tech double-decker buses on its 32 route, linking Bransholme and the city centre. The nine £130,000 Dennis Trident Alexander buses are part of the firm's plan to update buses across the city.
McGurk, Helen (7 March 2000). "Company lands £15m order". The News Letter. Belfast. p. 15. ProQuest 324607158.
"Express in £23m order for buses". Birmingham Post. 19 January 2001. p. 26. ProQuest 323657912.
"£4m on double deckers". Evening Mail. Birmingham. 13 September 2003. p. 4. ProQuest 322504591.
Bain, Simon (31 May 2004). "Cameron and Hastie take the wheel as bus-builder goes back to its roots". The Herald. Glasgow. p. 18. ProQuest 332868620. The new company is expected to announce that it has already received an order worth £7.5m for 50 double-deckers for Travel West Midlands, the Birmingham bus operator.
"Arriva hits the road with bus investment". The Northern Echo. Darlington. 27 May 1999. p. 10. ProQuest 328831312. Arriva is investing a further £8m on 70 buses in the Yorkshire area of its operations, including 20 low-floor double deck ALX 400 buses, destined for the Leeds guided bus way project.
Griffiths, Chloe (30 July 2005). "New bus fleet unveiled". The Journal. Newcastle-upon-Tyne. p. 26. ProQuest 350624135.

stagecoachgroup.com

"Devon takes delivery of new Tridents". On Stage. No. 54. Stagecoach Group. Spring 2004. p. 4. Retrieved 31 May 2023.^{[permanent dead link]}
"Partnership boost for local network". On Stage. No. 56. Stagecoach Group. Autumn 2004. p. 4. Retrieved 31 May 2023.^{[permanent dead link]}

staticflickr.com

live.staticflickr.com

Hall, Darren (June 2001). "AV130 was part of a batch of 15 (AV116-130) built with Dual Doors and Bonded Glazing, they were used for Airlink services with the final two AV129 and AV130 in standard Fleet Livery to be used as spares but they could also be used in regular service. AV130 is seen when 6 months old in June 2001 in Summerhill garage having been used on the Nitelink service 41N in the wee small hours that morning. Scan from a negative". Flickr. Archived from the original on 30 May 2023. Retrieved 30 May 2023.
Dean, Fred (July 2003). "Dublin Bus (Summerhill) Volvo B7TL / Alexander ALX400 AV 116 (00-D-70116) in Dublin Airport 10th July 2003". Flickr. Archived from the original on 30 May 2023. Retrieved 30 May 2023.

thenorthernecho.co.uk

"Major improvements to bus service are set to roll". The Northern Echo. Darlington. 8 March 2005. Retrieved 27 August 2022.

translink.co.uk

Stanczyk, Sarah (28 January 2003). "Translink Moves Public Transport into Top Gear" (Press release). Belfast: Translink. Archived from the original on 26 June 2003. Retrieved 6 April 2023.

trb.org

trid.trb.org

Rowlands, P. (3 September 2004). "Medway Medley". Bus & Coach Professional. No. 87. Retrieved 14 July 2022 – via TRID.

volvobuses.com

"More Volvo double deckers for Dublin" (Press release). Volvo Buses United Kingdom & Ireland. 4 July 2006. Retrieved 2 February 2023.

web.archive.org

"Stagecoach launches partnership with Oxford Brookes". Bus & Coach Professional. 2003. Archived from the original on 29 December 2003. Retrieved 3 June 2023.
Hall, Darren (June 2001). "AV130 was part of a batch of 15 (AV116-130) built with Dual Doors and Bonded Glazing, they were used for Airlink services with the final two AV129 and AV130 in standard Fleet Livery to be used as spares but they could also be used in regular service. AV130 is seen when 6 months old in June 2001 in Summerhill garage having been used on the Nitelink service 41N in the wee small hours that morning. Scan from a negative". Flickr. Archived from the original on 30 May 2023. Retrieved 30 May 2023.
Dean, Fred (July 2003). "Dublin Bus (Summerhill) Volvo B7TL / Alexander ALX400 AV 116 (00-D-70116) in Dublin Airport 10th July 2003". Flickr. Archived from the original on 30 May 2023. Retrieved 30 May 2023.
Stanczyk, Sarah (28 January 2003). "Translink Moves Public Transport into Top Gear" (Press release). Belfast: Translink. Archived from the original on 26 June 2003. Retrieved 6 April 2023.
Brown, Stewart (24 March 2006). "Investing in Merseyside". Bus & Coach Professional. Archived from the original on 24 March 2006. Retrieved 14 July 2022.

x.com

Alexander Dennis [@ADLbus] (1 May 2019). "We are proud to have been able to contribute to the preservation of London's first low-floor double decker by funding and carrying out its full restoration over the last two years. @Arriva_London will now donate the Alexander ALX400-bodied DAF to the @ltmuseum collection" (Tweet). Retrieved 10 August 2021 – via Twitter.