9Blare. B, P. Hazell, F. Place and J. Quiggin, The economics of farm fragmentation : evidence from Ghana and Rwanda,The World Bank Economic Review. 1992,6 (2):233 - 254.
10M. Closkey, D. N. The persistence of English common fields, in : Paker, W. , and Jones, E. eds. European Peasants and their Markets, Princeton,N. J. ,Princeton University Press. 1975.