1. Evaluation of a biogas plant on farm from the energetic point of view;Hishinuma;Journal of the Society of Agricultural Structures, Japan,2002
2. LCA Introduction to Business;LCA Business introduction edit committee,1998
3. IPCC, Climate Change: The Scientific Basis, 2001.
4. Life cycle assessment of centralized biogas plants in operation;Hinata,2003
5. Embodied Energy and Emission Intensity Data for Japan Using Input–Output Tables(3EID)—Inventory Data for LCA;Nansai,2002