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3. Erste ergebnisse der zuchte von Boletus edulis auf Künstlichem nährboden;Karpiński;Mushroom Science,1961
4. On the occurrence of poly-phenol oxidases in soil-inhabiting Basidiomycetes;Lindeberg;Physiologia Plantarum,1948
5. Utilization of various nitrogen sources in particular bound soil nitrogen, by mycorrhizal fungi;Lundeberg;Studia Forestalia Suecica,1970