Environment and human life in highlands and high-latitude zones. Proceedings of a symposium held by the Subcomm. Rural Development in Highlands and High-Latitude Zones of the I.G.U.Comm.on Rural Development, 21-25 Aug., 1984 in Innsbruck - Leidlmair, Adolf; Frantz, Klaus (Innsbrucker geographische Studien, 1985)