Feasibility of biogas production from anaerobic co-digestion of herbal-extraction residues with swine manure
Bioresource Technology (2011) - Comments
pubmed: 21507630  doi: 10.1016/j.biortech.2011.03.093  issn: 1873-2976  issn: 0960-8524 

Yan Li, Xi-Luan Yan, Jie-Ping Fan, Jian-Hang Zhu, Wen-Bin Zhou