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(Air Transport Association of America) The incidence of Air Travel Among the General Public, 1973. Princeton: Gallup, 1973.

(Department of the Environment) Highway Statistics 1971. London: Her Majesty's Stationary Office, 1973.

Galtung, Johan : "Foreign Policy Opinion as a Function of Social Position", Journal of Peace Research, vol. 1, no. 3/4, 1964, pp. 206-31.

- "Norway in the World Community", in Natalie R. Ramsøy , ed.: Norwegian Society. Oslo : Norwegian Universities Press, 1974.

— and Nils Petter Gleditsch : "Norge i verdenssamfunnet", i Natalie Ramsøy og Mariken Vaa: Det norske samfunn, 2nd ed., vol. II. Oslo: Gyldendal, 1975 (2nd ed. of the previous reference, in Norwegian).

Gleditsch, Nils Petter: "Time differences and international interaction", Cooperation and Conflict, vol. 9, no. 1. 1974, pp 35-51.

Hillman, Mayer (with Irwin Henderson and Anne Whalley): "Personal Mobility and Transport Policy", PEP Broadsheet, no. 542, June 1973.

Illich, Ivan : Energy and Equity, London: Calder and Boyars, 1974 (Danish Edition: Fartens tyranni. Energi og Forcleling, København: Reitzel , 1974.)

(International Air Transport Association) World Air Transport Stntistics, no. 16, 1971. Geneva: IATA, 1972.

- Agreeirtg Fares and Rates, Geneva: IATA, 1973.

(International Civil Aviation Organization) "Traffic 1961-71", Digest of Statistics, no. 169. Montreal: ICAO, 1972.

— "Survey of International Air Transport Fares and Rates, September 1973", circular 123-AT/33. Montreal: ICAO, 1974.

Lansing, John B. and Dwight M. Blood: The Changing Travel Market. Ann Arbor: Survey Research Center, University of Michigan, 1964.

Linder, Staffan B. : Den rastlösa velfärdsmänniskan. Tidsbrist i Överflod. En ekonomisk studie. Stockholm, Bonnier, 1969 (English language version: The Harried Leisure Class.)

Pillai, K.G.J. : The Air Net: The Case Against the World Aviation Cartel. NY: Grossman, 1969.

Rosenberg, Arne : Air Travel within Europe. Stockholm: National Swedish Consumer Council, 1970.

- Air Travel Across the North Atlantic. Stockholm: National Swedish Consumer Council, 1972.

Schwarz, Barry: "Waiting, Exchange and Power: The Distribution of Time in Social Systems ", American Journal of Sociology, vol. 79. no. 4, January 1974, pp. 841-870.

Schumacher, E.F. : Small is Beautiful. A Study of Economics as if People Mattered. London: Blond and Briggs, 1973

Shurcliffe, William A. : SST and the Sonic Boom Handbook. NY: Ballantine, 1970.

Smeed, R.J. : "Traffic Studies and Urban Congestion", Journal of Transportation Economics and Policy, January 1968.