Castillo, S. R., Winkle, C. R., Krauss, S., Turkewitz, A., Silva, C. and Heinemann, E. S. (2013) “Regulatory and Other Barriers to Urban and Peri-urban Agriculture: A Case Study of Urban Planners and Urban Farmers from the Greater Chicago Metropolitan Area”, Journal of Agriculture, Food Systems, and Community Development. Ithaca, NY, USA, 3(3), pp. 155–166. doi: 10.5304/jafscd.2013.033.001.