ШЕРШОВА, С. В. Biological activity of extracts of Echinacea pale depending onthe temperature. Scientific Progress & Innovations, [S. l.], n. 3, p. 162–166, 2012. DOI: 10.31210/visnyk2012.03.35. Disponível em: https://journals.pdau.edu.ua/visnyk/article/view/672. Acesso em: 24 aug. 2025.