Veranstaltung internationaler Symposien | |
| 1984 | Internationales Symposium in M�nchen und Wien (gemeinsam mit G. Heinritz) im Anschlu� an den IGU-Kongre� in Paris: "The Crisis of the City and the Take off of Suburbia" |
| 1994 | Academia Europaea General Meeting in Parma: Leitung des Symposiums" Cities and Urban Development in the 21st Century" |
| 1994 | IGU Regional Conference in Prag: Advisory board and Plenary Session: Geography of Transition: Society and Settlement Systems. |
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