Ardenghi, Nicola Maria Giuseppe, and Francesco Polani. “La Flora Della Provincia Di Pavia (Lombardia, Italia settentrionale). 1. L’Oltrepò Pavese”. Natural History Sciences 3, no. 2 (October 10, 2016): 51-79. Accessed December 5, 2020. https://sisn.pagepress.org/index.php/nhs/article/view/269.