Churski, Paweł, and Anna Borowczak. “Effectiveness of Interventions Co-Financed by the EU Structural Funds in Wielkopolska in the Years 2004-2006”. Quaestiones Geographicae, vol. 29, no. 2, June 2010, pp. 85-102, doi:10.2478/v10117-010-0016-3.