ON THE ISSUE OF SEPARATION OF GRAIN MIXTURES WITHOUT ENERGY EXPENDITURES FOR THE SEPARATION PROCESS. ПТТХВРГТ [Internet]. 2025 Dec. 1 [cited 2026 Apr. 10];(2 (38):156-6. Available from: http://pttfpecbt.btu.kharkiv.ua/pttfpecbt/article/view/213