MATYAŠOVSKÝ, Ján et al. Antioxidation activity of cysteine and cystine prepared from sheep wool. In journal of the American Leather Chemists Association. ISSN 0002-9726, 2020, vol. 115, no. 5, p. 166-175. APVV-14-0506 ; APVV-15-0124 ; APVV-16-0177 ; APVV-17-0456 ; APVV-18-0378 ; COST Action CA15216. CCC, WOS, SCOPUS.