Botella, J., Merino, C., Heredia, M.A. and Almagro, J. 1999. Quantitative relations between sulphur and sulphide contents in AISI 303 stainless steels: influence of the sulphide chemical composition. Revista de Metalurgia. 35, 3 (Jun. 1999), 173–181. DOI:https://doi.org/10.3989/revmetalm.1999.v35.i3.621.