G. Chekanova L, N. Vaulina V, V. Kharitonova A. Hydrazides in the Processes of Extraction of Non-ferrous Metals from Ammonia Solutions. Kms [Internet]. 2020 Dec. 31 [cited 2025 Jul. 1];6(1):65–69. Available from: https://knepublishing.com/index.php/KnE-Materials/article/view/8045