Determination of economically viable option of liquidation the consequences of external dump deformationYevheniy Babets, Oleh Anisimov, Oleksandr Shustov, Vitalina Komirna and Iryna MelnikovaE3S Web Conf., 280 (2021) 08014DOI: https://doi.org/10.1051/e3sconf/202128008014