1. J. Whitelegg, Transport for a Sustainable Future: the Case for Europe, Wiley, Chichester, 1993.
2. Ecoenergia: rational and renewable energies for the cities of the future, in: Proceedings of the Report of Congress and Workshop, EA.UE, European Academy of the Urban Environment, Berlin, 1994.
3. D. Appleyard, Liveable Streets, University of California Press, Berkeley, 1981.
4. P. Newman, J. Kenworthy, Cities and automobile dependence, Gower Technical, Aldershot, 1989.
5. T. Elkin, D. McLaren, Reviving the city: towards sustainable urban development, Friends of The Earth, London, 1991.