Herrle, Peter/Fokdal, Josefine/Ley, Astrid (2012): New Urban Players in Africa and Asia: The Role of Grassroots Organizations. in: Töpfer, Klaus und Mieg, Harald (eds.): Institutional and social innovation for sustainable urban development. Routledge, 146-161.Herrle, Peter/Ley, Astrid/Jachnow, Alexander (2006): The Metropolises of the South: Laboratory for Innovations? Towards better urban management with new alliances. SEF Policy Paper 25 download
Ley, Astrid (2012): Juggling with Formality and Informality in Housing: Some Lessons from the New South Africa, in: McFarlane, Colin/ Waibel, Michael (eds.) (2012): Urban Informalities. Reflections on the Formal and Informal, 13-28
Ley, Astrid (2010): Housing as Governance. Interfaces between Local Government and Civil Society Organizations in Cape Town, South Africa. Berlin/Münster: LIT Verlag.