Research on the Efficiency of Waste Water Purification from Chromium(IIІ) Ions by Bentonite Clays. Вісник ВПІ [Internet]. 2020 Jun. 24 [cited 2026 Nov. 15];(3):7-12. Available from: https://vpi.sprava.net/index.php/visnyk/article/view/2493