Nikolova, Milena, Mariya Petrova, Ely Zayova, Antonina Vitkova, and Ljuba Evstatieva. “Comparative Study of in Vitro, Ex Vitro and in Vivo Grown Plants of Arnica Montana - Polyphenols and Free Radical Scavenging Activity”. Acta Botanica Croatica 72, no. 1 (April 10, 2013). Accessed November 21, 2024. https://ojs3.abc.botanic.hr/index.php/abc/article/view/542.