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Muff, Patrick; Kropf, Christian; Frick, Holger; Nentwig, Wolfgang; Schmidt-Entling, Martin H. (2009). Coexistence of divergent communities at natural boundaries: spider (Arachnida: Araneae) diversity across an alpine timberline. Insect conservation and diversity, 2(1), pp. 36-44. Oxford: Blackwell 10.1111/j.1752-4598.2008.00037.x
Muff, Patrick; Schmidt, Martin; Frick, Holger; Nentwig, Wolfgang; Kropf, Christian (2007). Spider (Arachnida: Araneae) distribution across the timberline in the Swiss Central Alps (Alp Flix, Grisons) and three morphologically remarkable species. Arachnologische Mitteilungen(34), pp. 16-24. Basel: Arachnologische Arbeitsgemeinschaften Deutschlands, c/o Naturhistorisches Museum Basel
