1. T. Obinata: Proc. Conf. on Steels for Line Pipe and Pipeline Fittings, The Metals Society, London, 1981, pp. 185–91
2. T.A. Bloom, D.R. Fosnacht, D.M. Haezebrouck: Iron Steelmaker, 1990, vol. 17 (9), pp. 35–41
3. C.H. Herty Jr.: Trans. TMS-AIME, 1926, vol. 73, pp. 1107–34
4. J.R. Stubbles: Iron Steelmaker, 1986, vol. 13 (12), pp. 34–35
5. C.H. Herty Jr.: Trans. TMS-AIME, 1940, vol. 140, pp. 13–30