Is there a metropolitan bias? : the inverse relationship between poverty and city size in selected developing countries / Céline Ferré; Francisco H. G. Ferreira; Peter Lanjouw. Washington, DC : World Bank, Development Research Group, Poverty and Inequality Team, 2010 ; Halle (Saale) : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2010