1. Persson M, Jönsson O, Wellinger A. Biogas upgrading to vehicle fuel standard and grid introduction. IEA Bioenergy; 2006. Task, 24.
2. Editorial; special issue on landfill gas emission and mitigation;Huber-Humer;Waste Manage,2011
3. Petersson A, Wellinger A. Biogas upgrading technologies-developments and innovations, IEA Bioenergy, ; 2009 [accessed 16.3.2011].
4. Removal of siloxanes in biogases;Schweigkofler;J Hazard Mater,2001
5. Energy use of biogas hampered by the presence of siloxanes;Dewil;Energy Convers Manage,2006