Simons, D, Arfvidsson, H, Anand, G, Bazaz, A, Fenna,, F, Foster, K, Jain, J, Hansson, S, Marix Evans, L, Moodley, N, Nyambuga, C, Oloko, M, Chandi Ombara, D, Patel, Z, Perry, BG, Primo, N, Revi, A, Van Niekerk, B, Wharton, A, Wright, C, "Developing and testing the urban sustainable development goal’s targets and indicators – a five-city study", Environment and Urbanization, 2016