“DETERMINATION OF PHENOLIC COMPOUNDS AND WATER-SOLUBLE VITAMINS IN THE EXTRACT OF A POPLAR (POPULUS ALBA) AND WILLOW (SALIX) MIXTURE BY HPLC METHOD AND EVALUATION OF THEIR BIOLOGICAL SIGNIFICANCE” (2026) Eureka Journal of Physical and Chemical Research, 2(1), pp. 27–39. Available at: https://eurekaoa.com/index.php/1/article/view/265 (Accessed: 4 April 2026).