1
Published: 1966
Superior document: Veröffentlichung / Österreichisches Institut für Raumplanung, Wien 29
2
Superior document: Wiener geographische Schriften ...
3
Published: 1979
Superior document: Studies in the geography of tourism and recreation 2(1979)
4
Published: 1978
Superior document: Studies in the geography of tourism and recreation 1(1978)