PERISANU, Stefan, Kathleen F. EDWARDS, and Joel F. LIEBMAN. “Interrelations Between the Enthalpies of Formation of the Sulfur-Containing Amino Acids L-Cystine, L-Cysteine and L-Methionine”. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 48, no. 1 (March 15, 2025): 22-27. Accessed July 8, 2025. https://gup.ugal.ro/ugaljournals/index.php/mms/article/view/8770.