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den Bakker HC, Zuccarello GC, Kuyper TW, Noordeloos ME (2007). "Phylogeographic patterns in Leccinum sect. Scabra and the status of the arctic-alpine species L. rotundifoliae". Mycological Research. 111 (6): 663–72. doi:10.1016/j.mycres.2007.03.008. PMID17604144.