E531系K469編成総合車両製作所出場 [E531 series set K469 delivered from J-TREC]. RM News (in Japanese). Japan: Neko Publishing Co., Ltd. 19 December 2014. Archived from the original on 19 December 2014. Retrieved 19 December 2014.
nhk.or.jp
www3.nhk.or.jp
"JR常磐線衝突事故 車は直前まで警察の追跡受け逃走中" [JR Jōban Line Collision: car was on the run from police until just before the accident]. 26 March 2021. Archived from the original on 26 March 2021. Retrieved 27 March 2021.
railf.jp
"常磐線E531系が4年ぶりに新造される" [New E531 series built for first time in 4 years]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 1 October 2014. Archived from the original on 1 October 2014. Retrieved 1 October 2014.
クハE531-17が甲種輸送される [KuHa E531-17 to be delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 February 2024. Archived from the original on 2 March 2024. Retrieved 2 March 2024.
E531系K409編成が出場 [E531 series set K409 on test]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 March 2024. Archived from the original on 2 March 2024. Retrieved 2 March 2024.
"E531系K451編成に「赤電」ふうラッピング". Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 7 November 2021. Archived from the original on 7 November 2021. Retrieved 30 November 2021.
E531系K423編成,前面が赤電塗装になり出場 [E531 series set K423 with "electric red" livery at front]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 24 March 2023. Archived from the original on 2 June 2023. Retrieved 2 March 2024.
web.archive.org
"常磐線E531系が4年ぶりに新造される" [New E531 series built for first time in 4 years]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 1 October 2014. Archived from the original on 1 October 2014. Retrieved 1 October 2014.
E531系K469編成総合車両製作所出場 [E531 series set K469 delivered from J-TREC]. RM News (in Japanese). Japan: Neko Publishing Co., Ltd. 19 December 2014. Archived from the original on 19 December 2014. Retrieved 19 December 2014.
"JR常磐線衝突事故 車は直前まで警察の追跡受け逃走中" [JR Jōban Line Collision: car was on the run from police until just before the accident]. 26 March 2021. Archived from the original on 26 March 2021. Retrieved 27 March 2021.
クハE531-17が甲種輸送される [KuHa E531-17 to be delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 February 2024. Archived from the original on 2 March 2024. Retrieved 2 March 2024.
E531系K409編成が出場 [E531 series set K409 on test]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 March 2024. Archived from the original on 2 March 2024. Retrieved 2 March 2024.
"E531系K451編成に「赤電」ふうラッピング". Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 7 November 2021. Archived from the original on 7 November 2021. Retrieved 30 November 2021.
E531系K423編成,前面が赤電塗装になり出場 [E531 series set K423 with "electric red" livery at front]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 24 March 2023. Archived from the original on 2 June 2023. Retrieved 2 March 2024.