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Wieland, P. (2006). "Biomass Digestion in Agriculture: A Successful Pathway for the Energy Production and Waste Treatment in Germany". Engineering in Life Sciences. 6 (3). Engineering in Life Science: 302–309. Bibcode:2006EngLS...6..302W. doi:10.1002/elsc.200620128. S2CID54685767.
Roubík, Hynek; Mazancová, Jana; Banout, Jan; Verner, Vladimír (20 January 2016). "Addressing problems at small-scale biogas plants: a case study from central Vietnam". Journal of Cleaner Production. 112 (Part 4): 2784–2792. Bibcode:2016JCPro.112.2784R. doi:10.1016/j.jclepro.2015.09.114.
Ghimire, Prakash C. (1 January 2013). "SNV supported domestic biogas programmes in Asia and Africa". Renewable Energy. Selected papers from World Renewable Energy Congress – XI. 49: 90–94. Bibcode:2013REne...49...90G. doi:10.1016/j.renene.2012.01.058.
Deng, Yanfei; Xu, Jiuping; Liu, Ying; Mancl, Karen (2014). "Biogas as a sustainable energy source in China: Regional development strategy application and decision making". Renewable and Sustainable Energy Reviews. 35: 294–303. Bibcode:2014RSERv..35..294D. doi:10.1016/j.rser.2014.04.031. ISSN1364-0321.
"Archived copy"(PDF). Archived from the original(PDF) on 12 November 2018. Retrieved 22 December 2018.{{cite web}}: CS1 maint: archived copy as title (link)
Wieland, P. (2003). "Production and Energetic Use of Biogas from Energy Crops and Wastes in Germany". Applied Biochemistry and Biotechnology. 109 (1–3): 263–274. doi:10.1385/abab:109:1-3:263. PMID12794299. S2CID9468552.
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Wieland, P. (2003). "Production and Energetic Use of Biogas from Energy Crops and Wastes in Germany". Applied Biochemistry and Biotechnology. 109 (1–3): 263–274. doi:10.1385/abab:109:1-3:263. PMID12794299. S2CID9468552.
Wieland, P. (2006). "Biomass Digestion in Agriculture: A Successful Pathway for the Energy Production and Waste Treatment in Germany". Engineering in Life Sciences. 6 (3). Engineering in Life Science: 302–309. Bibcode:2006EngLS...6..302W. doi:10.1002/elsc.200620128. S2CID54685767.
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"Archived copy"(PDF). Archived from the original(PDF) on 12 November 2018. Retrieved 22 December 2018.{{cite web}}: CS1 maint: archived copy as title (link)
State Energy Conservation Office (Texas). "Biomass Energy: Manure for FuelArchived 23 October 2012 at the Wayback Machine." State Energy Conservation Office (Texas). State of Texas, 23 April 2009. Web. 3 October 2009.
Deng, Yanfei; Xu, Jiuping; Liu, Ying; Mancl, Karen (2014). "Biogas as a sustainable energy source in China: Regional development strategy application and decision making". Renewable and Sustainable Energy Reviews. 35: 294–303. Bibcode:2014RSERv..35..294D. doi:10.1016/j.rser.2014.04.031. ISSN1364-0321.