1. P.D. Goodell and J.W. Freeman:Elevated Temperature Properties as Influenced by Nitrogen Additions to Types 304 and 316 Austenitic Stainless Steels, ASTM STP 522, American Society for Testing and Materials, 1973, pp. 46–59.
2. F.C. Langenberg:Jour. of Metals, 1956, vol. 8, pp. 1099–1101.
3. V.C. Kashyap and N. Parlee:Trans. TMS-AIME, 1958, vol. 212, pp. 86–90.
4. H. Schenck, M.G. Frohberg, and H. Graf:Arch. für Eisen., 1958, vol. 29, pp. 673–76.
5. T. Busch and R.A. Dodd:Trans. TMS-AIME, 1960, vol. 218, pp 488–90.