Pietrzak, Michał Bernard. “Redefining the Modifiable Areal Unit Problem Within Spatial Econometrics, the Case of the Aggregation Problem”. Equilibrium. Equilibrium. Quarterly Journal of Economics and Economic Policy 9, no. 3 (November 3, 2014): 131–151. Accessed July 9, 2025. https://apcz.umk.pl/EQUIL/article/view/EQUIL.2014.021.