Lyubka Koleva1 and Fernando Lidon3, Andon Vassilev1*, Anna Nikolova2,. “Effects of Excess Zn on Growth and Photosynthetic Performance of Young Bean Plants”. Journal of Phytology 3, no. 6 (June 29, 2011). Accessed February 29, 2024. https://updatepublishing.com/journal/index.php/jp/article/view/2279.