TY - JOUR AU - Stopic, Srecko AU - Friedrich, Bernd TI - Advances in Understanding of the Application of Unit Operations in Metallurgy of Rare Earth Elements JO - Metals : open access journal VL - 11 IS - 6 SN - 2075-4701 CY - Basel PB - MDPI M1 - RWTH-2021-06656 SP - 978 PY - 2021 N1 - In Virtual Special Issue : Extractive Metallurgy LB - PUB:(DE-HGF)16 ; PUB:(DE-HGF)7 UR - <Go to ISI:>//WOS:000666745300001 DO - DOI:10.3390/met11060978 UR - https://publications.rwth-aachen.de/record/822293 ER -