Rene Van Berkel paper Lesson's Learned from the Application of the UNIDO Eco-Industrial Park Toolbox in Vietnam and other countries
read the abstract here,https://www.researchgate.net/publication/335259355_Lessons_Learned_from_the_Application_of_the_UNIDO_Eco-Industrial_Park_Toolbox_in_Viet_Nam_and_Other_Countries and the full paper is available to download from the site.