1. Ackoff, R. L.Scientific Method. Optimizing Applied Research Decisions. New York: John Wiley & Sons, Inc., 1961.
2. Alonso, W. “A Theory of the Urban Land Market,”Papers and Proceedings of the Regional Science Association, 1960.
3. Anderson, T. R. and J. E. Egeland. “Spatial Aspects of Social Area Analysis,”American Sociological Review, 1961.
4. Beer, S., “Below the Twilight Arch—A Mythology of Systems,” in D. F. Eckman, ed.,Systems. Research and Design. New York: John Wiley & Sons, Inc., 1961.
5. Bell, G. “Change in City Size Distribution in Israel,”Ekistics, 1962.