The presence of satellite cities within large metropolitan areas cannot be captured by an exponential function. Cubic spline functions seem more appropriate to depict the polycentric pattern of modern ...
The Canadian Journal of Statistics / La Revue Canadienne de Statistique, Vol. 19, No. 3 (Sep., 1991), pp. 323-339 (17 pages) A method based on the principle of unbiased risk estimation is used to ...
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