1. EPA, Annex O: methodology for estimating CH4 emissions from landfills, http://yosemite.epa.gov/oar/globalwarming.nsf/UniqueKeyLookup/LHOD5MJTBK/$File/2003-final-inventory_annex_q.pdf, Visited in November 2004.
2. Alternative approach to the elimination of greenhouse gases from old landfills;Humer;Waste Manage. Res.,1999
3. Trace gas compound emissions from municipal landfill sanitary sites;Brosseau;Atmos. Environ.,1994
4. Methane oxidation in alternative landfill cover soils;Bajic,2001
5. Reduction of methane and trace gas emissions from former landfills in biofilters;Streese,2001