REFERENCES
- Flägerstrand, Torsten. Geographic Information for Computer Work in Sweden, Department of Geography, University of Lund, 1966. (Unpublished paper.)
- Tobler, Waldo R. "Automation in the Preparation of Thematic Maps." Cartographic Journal, Vol. 2, No. 1, 1965.
- Törnquist, Gunnar. "Transport Costs as a Location Factor for Manufacturing Industry," The Swedish Geographical Year Book 1962.
- Map of the Distribution of Population in Scotland 1961, produced in the Department of Geography, University of Glasgow, published by William Collins Sons & Co Ltd, 1965.
- A Description of the Ordnance Survey Large Scale Plans, published by the Director General of the 0.S., Chessington, Surbiton, Surrey, 1954.
- Blakesley et al, The Planning Databank Challenges the Sur-veyor and Mapmaker. Prepared for the joint convention of the American Congress for Surveying and Mapping and the American Society of Photogrammetry, Washington, 1966.
- Hägerstrand, Torsten. "Census Returns, Air Photographs and Data-processing Machines. A Project for Combination." The Swedish GeographicalY Year Book 1955.
- Report of the IGU Commission on a World Population Map prepared for the International Geographical Congress in London 191964 — several papers, in particular: Claeson, Claes-Fredrik, "Co-ordinate System Map of Population Distribution in Sweden, 1960."
- Nordbeck, Stig. Location of Areal Data for Computer Pro-cessing. Department of Geography, University Lund, 1962.