Media type: E-Article Title: Results from 18 Years of In Situ Performance Testing of Landfill Cover Systems in Germany Contributor: Melchior, Stefan; Sokollek, Volker; Berger, Klaus; Vielhaber, Beate; Steinert, Bernd imprint: American Society of Civil Engineers (ASCE), 2010 Published in: Journal of Environmental Engineering Language: English DOI: 10.1061/(asce)ee.1943-7870.0000200 ISSN: 0733-9372; 1943-7870 Keywords: General Environmental Science ; Civil and Structural Engineering ; Environmental Chemistry ; Environmental Engineering Origination: Footnote: