1. M. M. Webber, “Culture, Territoriality, and the Elastic Mile”,Papers of the Regional Science Association, vol. 13, 1964, pp. 59–70. The ambiguity of the distance concept is also brought out in Gunnar Olsson,Distance and Human Interaction; A Review and Bibliography. [Bibliography Series No. 2], Philadelphia, Regional Science Research Institute, 1965.
2. The importance of regional economic policy in public policies generally is clearly made evident in two recent publications:Area Redevelopment Policies in Britain and the Countries of the Common Market, U. S. Department of Commerce, Area Redevelopment Administration, Washington, GPO, 1965; and E. S. Kirschen and L. Morissens, “The Objectives and Instruments of Economic Policy”, in Bert G. Hickmann, ed.,Quantitative Planning of Economic Policy, Washington, The Brookings Institute, 1965.
3. L. Rodwin, “Regional Science: Quo Vadis?”Papers and Proceedings of the Regional Science Association, vol.5, 1959, pp. 3–20.
4. Walter Isard et al.,Methods of Regional Analysis: an Introduction to Regional Science, Cambridge, Mass., and New York, Technology Press and Wiley, 1960.
5. R. Vining, “An Outline of a Stochastic Model for the Study of the Spatial Structure and Development of a Human Population System”,Papers of the Regional Science Association, vol. 13, 1964, pp. 15–40; and B. J. L. Berry, “Cities as Systems within Systems of Cities”,ibid. Papers of the Regional Science Association, pp. 147–164, also reprinted in John Friedmann and William Alonso, eds.,Regional Development and Planning: A Reader, Cambridge, Mass., M. I. T.Press, 1964.