Krause-Jensen, D., Schou Hansen, O.
, Dahl, K., Ærtebjerg, G. (Ed.), Andersen, J. H. (Ed.) & Schou Hansen, O. (Ed.) (2003).
Submerged aquatic vegetation. In G. A. Ærtebjerg, S. H. J.H. & O. (eds.) (Eds.),
Nutrients and Eutrophication in Danish Marine Waters: A Challenge for Science and Management (pp. 68-75). National Environmental Research Institute.
http://www.dmu.dk/1_viden/2_Publikationer/3_Ovrige/rapporter/ospar.asp
Ærtebjerg, G., Andersen, J. H., Schou hansen, O., Karup, H., Ærtebjerg, G. (Ed.), Andersen, J. H. (Ed.) & Schou Hansen, O. (Ed.) (2003).
Summary, conclusions and the future. In G. A. Ærtebjerg, S. H. J.H. & O. (eds.) (Eds.),
Nutrients and Eutrophication in Danish Marine Waters: A Challenge for Science and Management (pp. 101-109). National Environmental Research Institute.
http://www.dmu.dk/1_viden/2_Publikationer/3_Ovrige/rapporter/ospar.asp