1. Municipal solid waste. Energy Conversion;Schneider,1990
2. European Environment Agency. Managing municipal solid waste;Thomas;J Air Pollut Control Assoc,2013
3. Manure management,1995
4. Directorate- General Environment. Inventory of manure preocessing activities in Europe. Project reference: ENV. B. 1/ETU/2010/0007;Flotats,2011