Ryo Fujii
- Environmental Loads Reduction In A Sewage Sludge Treatment System Collecting Sludge From Some Sewage Treatment Plants With Energy Producing From The Sludge And It's Utilization. Dans: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1999, n. 629 (août 1999). (1999):
- Proposal Of Energy Network In Waste Treatment Facilities And Sewage Treatment Facilities. Dans: 土木学会論文集 (Doboku Gakkai rombunshū), v. 1999, n. 636 (novembre 1999). (1999):