Chai, Rui, and Yitong Ma. “Two New Species of Willowsia (Collembola: Entomobryidae) from Yunnan Province, China”. European Journal of Taxonomy0, no. 311 (April 20, 2017). Accessed April 17, 2024. https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/436.