The harmonization of European environmental law and diverging national measures: a general survey of the European Community's legal mechanisms for the coordination of Community secondary law and national environmental measures with a special focus on more stringent national measures and their legal justification under the existing system of safeguard clauses, systematic escape clauses, and minimum standards and the principles of shared responsibility, subsidiarity, and competition of regulatory systems
Ziegler Andreas R., 1993., European University Institute, Francis Snyder (dir.).
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