van den Akker, Pieter. "Informatie over de Tour de France van 1974" [Information about the Tour de France from 1974]. TourDeFranceStatistieken.nl (in Dutch). Archived from the original on 4 March 2019. Retrieved 2 March 2019.
van den Akker, Pieter. "Informatie over de Tour de France van 1974" [Information about the Tour de France from 1974]. TourDeFranceStatistieken.nl (in Dutch). Archived from the original on 4 March 2019. Retrieved 2 March 2019.