{"id":"000988863","type":"book","title":"Man-induced changes at the alpine timberline of the Val Fenga (Silvretta, Switzerland) and their reflections in pollen diagrams (preliminary report)","publisher":"G. Fischer","publisher-place":"Stuttgart","pages":"137-161","container-title":"Oscillations of the alpine and polar tree limits in the Holocene","author":[{"family":"Hüppe","given":"Joachim"}],"issued":{"raw":"1993"}}