Klepper, O.; van de Kamer, J.P.G.; van der Meer, J. (1989). A carbon budget of the Oosterschelde estuary, in: Klekowski, R.Z. et al. (Ed.) Proceedings of the 21st European Marine Biology Symposium, Gdánsk, 14-19 September 1986. pp. 319-328
In: Klekowski, R.Z.; Styczynska-Jurewicz, E.; Falkowski, L. (Ed.) (1989). Proceedings of the 21st European Marine Biology Symposium, Gdánsk, 14-19 September 1986. European Marine Biology Symposia, 21. Polish Academy of Sciences, Institute of Oceanology: Wraclow. 639 pp., meer