"Planning & Kosten". Noord/Zuidlijn (in Dutch). Gemeente Amsterdam [City of Amsterdam]. Archived from the original on 13 August 2022. Retrieved 9 June 2014.
"Jaarverslag 2016" [Annual Report 2016] (in Dutch). GVB Holding NV. 23 May 2017. p. 18. Archived from the original on 23 January 2018. Retrieved 12 June 2016.
humanhub.nl
"Zuidas Visie"(PDF). Archived(PDF) from the original on 20 June 2006. Retrieved 13 July 2006.
"Plan Stadsspoor"(PDF) (in Dutch). Communications Department, City of Amsterdam. 1968. Archived(PDF) from the original on 7 December 2016. Retrieved 31 July 2014.
"Metronetstudie" [Metronet Study] (PDF) (in Dutch). Department of Infrastructure, Traffic and Transport, City of Amsterdam. 5 June 2007. p. 29. Archived(PDF) from the original on 8 August 2014. Retrieved 14 December 2014.
"Metronetstudie" [Metronet Study] (PDF) (in Dutch). Department of Infrastructure, Traffic and Transport, City of Amsterdam. 5 June 2007. p. 93. Archived(PDF) from the original on 8 August 2014. Retrieved 14 December 2014.
"Jaarverslag 2016" [Annual Report 2016] (in Dutch). GVB Holding NV. 23 May 2017. p. 18. Archived from the original on 23 January 2018. Retrieved 12 June 2016.
"Plan Stadsspoor"(PDF) (in Dutch). Communications Department, City of Amsterdam. 1968. Archived(PDF) from the original on 7 December 2016. Retrieved 31 July 2014.
"Planning & Kosten". Noord/Zuidlijn (in Dutch). Gemeente Amsterdam [City of Amsterdam]. Archived from the original on 13 August 2022. Retrieved 9 June 2014.
"Metronetstudie" [Metronet Study] (PDF) (in Dutch). Department of Infrastructure, Traffic and Transport, City of Amsterdam. 5 June 2007. p. 29. Archived(PDF) from the original on 8 August 2014. Retrieved 14 December 2014.
"Metronetstudie" [Metronet Study] (PDF) (in Dutch). Department of Infrastructure, Traffic and Transport, City of Amsterdam. 5 June 2007. p. 93. Archived(PDF) from the original on 8 August 2014. Retrieved 14 December 2014.
"Planning en begroting" [Planning and Budgeting]. Noord/Zuidlijn (in Dutch). Gemeente Amsterdam [Municipality of Amsterdam]. Archived from the original on 13 July 2016. Retrieved 8 July 2016.
"Planning en begroting" [Planning and Budgeting]. Noord/Zuidlijn (in Dutch). Gemeente Amsterdam [Municipality of Amsterdam]. Archived from the original on 13 July 2016. Retrieved 8 July 2016.