[1]
Terfrüchte, T. et al. 2017. Empirical foundation of central-place-concepts – Recommendations for an ideal type approach. Raumforschung und Raumordnung | Spatial Research and Planning. 75, 5 (Oct. 2017), 471–485. DOI:https://doi.org/10.1007/s13147-017-0505-0.