Media type: E-Article Title: Method for preparing biogas Parallel title: Verfahren zur Biogaserzeugung Other titles: Nebent.: Method for producing biogas in controlled concentrations of trace elements Contributor: Oechsner, Hans [Other]; Lemmer, Andreas [Other]; Preißler, Daniel [Other] Published: 2008 Published in: Esp_372cenet ; 2008, Publication Number DE102007025155 (A1) Language: English Origination: Footnote: Auch veröffentlicht als EP1997901 (A2); EP1997901 (A3); WO2008145362 (A1) Access State: Open Access