Ballelli, Sandro, Federico Maria Tardella, Riccardo Pennesi, Tiziana Panichella, Alessandro Bricca, Alessandra Vitanzi, in Andrea Catorci. „Contribution to the Knowledge of the Non-Calcareous Grasslands of the Monti Sibillini National Park (central Italy): Coenological Structure, Syntaxonomy, Ecology, and Floristic Aspects“. Hacquetia 21, no. 1 (oktober 13, 2021): 41–72. Pridobljeno julij 18, 2024. https://ojs.zrc-sazu.si/hacquetia/article/view/10265.