1. Adachi Ward. (2012).Adachiku koritsu zero purojekuto suishin nikansuru jourei[Ordinance on the promotion of the Adachi Ward Zero Isolation Project]. Retrieved fromhttps://www.city.adachi.tokyo.jp/documents/19025/jyourei_1.pdf
2. Adachi Ward. (2017).Kizuna no anshin kyoryokuin:Mimamori yorisoi katsudou no tebiki[Collaborator for social bond and sense of security: Guide to watch over and support activities]. Retrieved fromhttps://www.city.adachi.tokyo.jp/documents/38797/kyouryokuintebiki_1.pdf
3. Adachi Ward. (2019).Koristuzero purojekuto suishinkatsudou jisshichoukai jichikai ichiran[List of community associations where zero tolerance to isolation project is carried out]. Retrieved fromhttps://www.city.adachi.tokyo.jp/documents/38776/r1-12.pdf
4. Adachi Ward. (2020).Koritsuzero projekuto suishin katsudou[Zero social isolation promotion activities]. Retrieved fromhttps://www.city.adachi.tokyo.jp/chiiki/korituzero.html?fbclid=IwAR13O9WXq_zxNryja54ioPiVSwgMMWjxbCjfUemmIFloKKXmwrLWPotJW‐o
5. Wide-area collaboration in the aftermath of the March 11 disasters in Japan: Implications for responsible disaster management