1. As in No. 180.
2. Wiberg, M.: Jernkont. Ann. 124 (1940) p. 179–212; cf. Stahl u. Eisen 61 (1941) p. 141–143. Wiberg, M.: Disc. Faraday Soc. No. 4, 1948, p. 231–233.
3. Edström, J. O.: J. Iron Steel Inst. 175 (1953) p. 289–304 and 6 tables. -Edström, J. O.: Jernkont. Ann. 140 (1956) p. 116–129.
4. Koura, H. K., and H.-J. Engell: Arch. Eisenhüttenwes. 34 (1963) p. 411–418. (Mitt. Max-Planck-Inst. Eisenforsch., Abh. 945, and Hochofenaussch. 377.i
5. As in No. 145.