• Japan Heat Supply Business Association　http://www.jdhc.or.jp/
• Japan District Heating and Cooling Association　 http://www.dhcjp.or.jp/
• Minato Mirai 21　http://www.minatomirai21.com/
• City of Yokohama　 http://www.city.yokohama.jp/
• Minatomiraihoncho Elementary School　https://www.edu.city.yokohama.lg.jp/school/es/minatomiraihoncho/