Klavina A, Auce A, Vanadzins I, Silova A, Dobkevica L. EXTRACTION OF BIOLOGICALLY ACTIVE COMPONENTS FROM FRESHWATER SAPROPEL. ETR [Internet]. 2019 Jun. 20 [cited 2024 Nov. 23];3:114-8. Available from: https://journals.ru.lv/index.php/ETR/article/view/4135