Pavlík, M., Vacek, J., Klejdus, B. a Kubáň, V. (2007) „High Performance Liquid Chromatographic Study of Influence of Saccharose and Poly(ethylene glycol) on Production of Hypericin and Hyperforin by Hypericum perforatum L"., Chemické listy, 101(7). Dostupné z: http://ww-w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/1772 (Viděno: 18 duben 2024).