Pliszko, Artur, and Malgorzata Jazwa. “Floristic Composition of Vegetation in Habitats Suitable for Erigeron × Huelsenii (Asteraceae)”. Acta Botanica Croatica 76, no. 1 (April 1, 2017). Accessed February 5, 2023. https://www.abc.botanic.hr/index.php/abc/article/view/1650.