Piotrowicz, A., Pietrzyk, S., Noga, P. and Myćka, Łukasz 2021. Erratum to: The use of thermal hydrogen decrepitation to recycle Nd-Fe-B magnets from electronic waste, J. Min. Metall. Sect. B-Metall., 56 (3) (2020) 415-424. DOI:10.2298/JMMB200207032P. Journal of Mining and Metallurgy, Section B: Metallurgy. 57, 2 (Jul. 2021), 297-297.