1. 1) New Energy and Industrial Technology Development Organization (NEDO), https://app5.infoc.nedo.go.jp/disclosure/SearchResult, Project No. P04004, Administration No. 100010259 (2006), 100010261 (2006), 100012645 (2007).
2. 2) New Energy and Industrial Technology Development Organization (NEDO), https://app5.infoc.nedo.go.jp/disclosure/SearchResult, Project No. 999999, Administration No. 100014188 (2008), 100014190 (2008), 100014191 (2008), 100014199 (2008).
3. Internal reforming SOFC running on biogas
4. Feasibility of direct-biogas SOFC
5. Operation of solid oxide fuel cell on biomass product gas with tar levels >10 g Nm−3