Nikolova, M., Petrova, M., Zayova, E., Vitkova, A., & Evstatieva, L. (2013). 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(1). Retrieved from https://www.abc.botanic.hr/index.php/abc/article/view/542