Eutrophication in the Baltic sea : pesent stuation, nutrient tansport pocesses, remedial srategies / L. Hakanson, A. Bryhn, 2008 r=on-line. - Текст : электронный.
Hakanson L. Tools and criteria for sustainable coastal ecosystem management : examples from the Baltic sea and other aquatic systems / L. Hakanson, A. Bryhn, 2008 r=on-line. - Текст : электронный.