Ecological Efficiency of Maize-Based Cropping Systems for Biogas Production - Nikolai Svoboda; Friedhelm Taube; Christof Kluß; Babette Wienforth; Klaus Sieling; Mario Hasler; Henning Kage; Susanne Ohl; Eberhard Hartung; Antje Herrmann (BioEnergy Research, 2015)

Emission of N2O from Biogas Crop Production Systems in Northern Germany - Mehmet Senbayram; Ruirui Chen; Babette Wienforth; Antje Herrmann; Henning Kage; Karl H. Mühling; Klaus Dittert (BioEnergy Research, 2014)