The decline of traditional planning and the reform of the human relationship to the environment (lecture) - Korhonen, Ahti. (Espoo : Helsinki University of Technology, 1984)
International Urban Planning Symposium the 3th-6th October 1983 in Goslar, Deutsche Akademie für Städtebau und Landesplanung, Landesgruppe Niedersachsen-Bremen.
The planning of human settlements under the aspect of the renewing the relationship between men and environment (working thema).