Sitta, Nicola; Floriani, Marco (2008). "Nationalization and Globalization Trends in the Wild Mushroom Commerce of Italy with Emphasis on Porcini ( Boletus edulis and Allied Species)". Economic Botany. 62 (3): 307–22. doi:10.1007/s12231-008-9037-4. S2CID44274570.
Sitta, Nicola; Floriani, Marco (2008). "Nationalization and Globalization Trends in the Wild Mushroom Commerce of Italy with Emphasis on Porcini ( Boletus edulis and Allied Species)". Economic Botany. 62 (3): 307–22. doi:10.1007/s12231-008-9037-4. S2CID44274570.