ASAKAWA, Kenji. The status and use of soft law in local governments’ management of urban development. International Planning History Society Proceedings, [S.l.], v. 18, n. 1, p. 25-31, oct. 2018. ISSN 2468-6956. Available at: <https://journals.open.tudelft.nl/index.php/iphs/article/view/2665>. Date accessed: 18 june 2019. doi: https://doi.org/10.7480/iphs.2018.1.2665.