Stephen W. H. Yih
Stig Rydén
Kuo-chʻin Li
International Conference on Tungsten and Tungsten Alloys (1st 1992 Arlington, Va.)
David Bart Duncan
Hans Mennicke
Hee Man Yun
Unknown Author
Carl Linden Rollinson
George A. Rabchevsky
Daji Shan wu kuang zhi bian zuan wei yuan hui
Christen Michael Giandomenico
L. Bartha
International Tungsten Symposium 1st Stockholm 1979.
United States International Trade Commission
H. W. Little
Robert J. Kamilli
E. A. Gulbransen
I. N. Plaksin
United States. Business and Defense Services Administration. Iron and Steel Division.