AIS

Hüppe, J., Pott, R. , "Man-induced changes at the alpine timberline of the Val Fenga (Silvretta, Switzerland) and their reflections in pollen diagrams (preliminary report)", Oscillations of the Alpine and Polar tree limits in the Holocene, Stuttgart, pp. 137–161, 1993  .
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Drescher-Schneider, R. , "L'influsso umano sulla vegetazione neolitica nel territorio di Varese dedotto dai diagrammi pollinici", Natura Bresciana, vol. 13, Brescia, pp. 91-97, 1990  .
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Behre, K.E. [eds.], Anthropogenic indicators in pollen diagrams., , Rotterdam, 1986  .
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Behre, K.E. , "The interpretation of anthropogenic indicators in pollen diagrams.", Pollen et Spores, vol. 23, pp. 225–245, 1981  .
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