Mihai, Florin. “Development of MSW Collection Service on Regional Scale: Spatial Analysis and Urban Disparities in North-Easr Region, Romania”. Acta Geographica Debrecina Landscape & Environment Series, vol. 7, no. 1, May 2013, pp. 13-18, https://ojs.lib.unideb.hu/landsenv/article/view/2297.