REFERENCES
- C. Ballhausen, Stahl u. Eisen, 1951, 71, 1090.
- “The German Hard Metal Industry” (B.I.O.S. Final Rep. No. 1385). 1947: London (H.M. Stationery Office).
- “Tungsten Carbide Research in Germany” (B.I.O.S. Final Rep. No. 925). 1947: London (H.M. Stationery Office).
- G. J. Trapp, B. E. Berry, H. Burden, A. E. Oliver, and T. flame, “Symposium on Powder Metallurgy 1947” (Special Rep. No. 38), p. 92. 1947: London (Iron and Steel Institute).
- W. Dawihl, “A Handbook of Hard Metals”. 1955: London (H.M. Stationery Office).
- “Powder Metallurgy” (Rep. by Technical Assistance Mission No. 141). 1955: Paris (0.E.E.C.); London (H.M. Stationery Office).
- R. Kieffer and P. Schwarzkopf, ” Hartstoffe und Hartmetalle”. 1953: Wien (Springer-Verlag).
- L. D. Brownlee, G. A. Geach, and T. Raine, “Symposium on Powder Met-allurgy 1947” (Special Rep. No. 38), p. 73. 1947: London (Iron and Steel Institute).
- S. L. Hoyt, Trans. Amer. Inst. Min. Met. Eng., Inst. Metals Div., 1930, 9.
- W. Dawihl, Z. Metallkunele, 1952, 43, 20.
- H. Burden, “Symposium on Powder Metallurgy 1947” (Special Rep. No. 38), p. 78. 1947: London (Iron and Steel Institute).