van Haren, H.; Ruardij, P.; Ridderinkhof, H.; Mills, D. (1997). The Integrated North Sea Programme (INP), in: Stel, J.H. et al. (Ed.) Operational oceanography: the challenge for European co-operation: Proceedings of the First International Conference on EuroGOOS 7-11 October 1996, The Hague, The Netherlands. Elsevier Oceanography Series, 62: pp. 529-538
In: Stel, J.H. et al. (1997). Operational oceanography: the challenge for European co-operation: Proceedings of the First International Conference on EuroGOOS 7-11 October 1996, The Hague, The Netherlands. Elsevier Oceanography Series, 62. Elsevier: Amsterdam/Lausanne/New York/Oxford/Shannon/Singapore/Tokyo. ISBN 0-444-82892-3; e-ISBN 978-0-444-82892-7. XX, 757 pp., meer
In: Elsevier Oceanography Series. Elsevier: Oxford; New york; Amsterdam. ISSN 0422-9894, meer