Key points are not available for this paper at this time.
Bengston, D. N. and Y. C. Youn. 2006. Urban containment policies and the protection of natural areas: the case of Seoul's greenbelt. Ecology and Society 11(1): 3. https://doi.org/10.5751/ES-01504-110103
Βengston et al. (Sun,) studied this question.