L. A. van Hengstum
- Dutch Rail's Double Track Lifting Bridges. Dans: (1997): the architecture of bridge design. Thomas Telford, Londres (Royaume-Uni), ISBN 978-0727725295. (1997):
- Railway projects move dutch transport into the twenty-first century. Dans: Tunnelling and Underground Space Technology, v. 9, n. 3 (juillet 1994). (1994):