ПОСПЕЛОВ, С. В. Methods for evaluating the effectiveness of echinacea (Echinacea Moencnh) in pregenesic period of ontogenesis. Scientific Progress & Innovations, [S. l.], n. 1, p. 24–30, 2013. DOI: 10.31210/visnyk2013.01.05. Disponível em: https://journals.pdau.edu.ua/visnyk/article/view/138. Acesso em: 24 aug. 2025.