Ökobilanzen als Instrument des Umweltrechts : Endbericht zum F+E Vorhaben 20106071 (alt) ; [29792071] Eco balance life cycle assessment DIN EN ISO 14040 life cycle inventory analysis life cycle impact assessment life cycle interpretation waste balance environmental management system survey on LCA waste law dangerous substances law voluntary modells eco audit environmental code requirements of determinacy general clause LCA obligation experimental legislation competition law business and trade secret binding effect participation transparency