Vrancheva, Radka, Ivan Ivanov, Ilian Badjakov, Ivayla Dincheva, Vasil Georgiev, & Atanas Pavlov.
" Optimization of polyphenols extraction process with antioxidant properties from wild Vaccinium myrtillus L. (bilberry) and Vaccinium vitis-idaea L. (lingonberry) leaves." <em>Food Science and Applied Biotechnology</em> [Online], 3.2 (2020): 149-156. Web. 19 Apr. 2025