上野東京ライン開業に伴い、常磐線特急はより快適に、より使いやすい特急に生まれ変わります。 [Joban Line limited express services to become faster and more convenient with opening of Ueno-Tokyo Line] (PDF). News release (in Japanese). Japan: East Japan Railway Company. 30 October 2014. Retrieved 30 October 2014.
「上野東京ライン」開業により、南北の大動脈が動き出します [North-south artery comes into operation with opening of Ueno-Tokyo Line] (PDF). News release (in Japanese). Japan: East Japan Railway Company. 30 October 2014. Retrieved 30 October 2014.
railf.jp
"JR東日本,3月18日にダイヤ改正を実施" [JR East Implements Schedule Revision Effective 18 March 2023]. Japan Railfan Magazine Online (in Japanese). 16 December 2022. Archived from the original on 19 December 2022. Retrieved 19 December 2022.
web.archive.org
"JR東日本,3月18日にダイヤ改正を実施" [JR East Implements Schedule Revision Effective 18 March 2023]. Japan Railfan Magazine Online (in Japanese). 16 December 2022. Archived from the original on 19 December 2022. Retrieved 19 December 2022.