@incollection{MettkeThomas2003, author = {Angelika Mettke and Cynthia Thomas}, title = {R{\"u}ckbau industrieller Baussubstanz - großformatige Betonelemente im {\"o}kologischen Kreislauf}, booktitle = {Handbuch Umweltwissenschaften}, isbn = {3-9803983-5-8}, year = {2003}, }