1. 4) Toshihiro Hiraisihi: On-site Garbage Recycle System in Urban Area, 20th EAROPH WORLD CONGRESS & MAYORS' CAUCUS, 2006
2. 5) I.G. Mason, Mathematical modelling of the composting process: A review, Waste Management 26 pp.3-21, 2006
3. 6) T. Narihiro, T. Abe, Y. Yamanaka, A. Hiraishi: Microbial population dynamics during fed-batch operation of commercially available garbage composters, Appl. Microbiol. Biotechnol. 65: pp.488-495, 2004