Rydén, L., Migula, P., Anderson, M: Environmental Science: Understanding, Protecting and Managing the Environment in the Baltic Sea Region, Baltic University Press, 2003, 824p., ISBN 91-970017-0-8
Ecosystems and Human Well-being: General Synthesis (http://www.maweb.org/en/Synthesis.aspx)
ISO norms 14000
EMAS