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Going Diverse: Innovative Answers to Future Challenges. Book of Abstracts 29-30 October 2009. RWTH Aachen University
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Dictionnaire de la protection de l'environnement / Dictionary of Environmental Protection / Fachwörterbuch zum Umweltschutz
Otto E. Tutzauer
Environmental Economics, Policy and International Relations : 6th Seminar of Postgraduate Students, Young Scientists and Researchers Prague 2004
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