1. Anyalebechi P. N. // Foundry Trade J. 1993. May 7. Р. 258–269.
2. Refractory plug or brick for injecting gas into molten metal. Publication number WO 02074470 A1, Willoughby Craig, Millward Cavan.
3. Szekely A. G. // Metallurgical Transactions B. 1976. June. V. 7B. Р. 259–270.
4. Taggart A. F. Handbook of ore dressing. — New York: John Wiley & Sons. Inc. 1927.
5. Pat. 1413723 USA. April 25. 1922. Frank Croch. Ore concentration.
6. Pat. 12767523 USA. August 27.1918. Frank Croch. Ore concentration.
7. Young P. // Mining Magazine. 1982. January. Р. 35–59.
8. Sine Associates // Cast Metal Times. 2003. December/January. Р. 14.