Rychkov V, Koukkari P, Kirillov S, Kirillov E. Best Practices of Russia and Finland in Extracting REE from Fertilizer Waste. Kms [Internet]. 2017Sep.3 [cited 2024May19];2(2):168-73. Available from: https://knepublishing.com/index.php/KnE-Materials/article/view/965