00355nam a2200097Ia 4500008004100000100002500041245013200066260004200198260000900240300000800249200302s9999    xx            000 0 und d  aThilo Ebert & Others  aGreen Building Certification Systems Assessing Sustainability International System Comparison Economic Impact of Certifications  bArchitektur-Dokumentation Gmbh & Co.   c2011  a143