VÂNTU, Smaranda. “Indirect Organogenesis of ‘Symphytum Officinale’ L”. Studia Universitatis Babeș-Bolyai Biologia 61, no. 1 (June 20, 2016): 57–58. Accessed July 7, 2024. http://193.231.18.162/index.php/subbbiologia/article/view/4438.