1. 1R. T. DeHoff, R. A. Rummel, H. P. LaBuff, F. N. Rhines, and H. H. Hausner ; p.310 inModern Developments in Powder Metallurgy , Vol. I . Plenum Press, New York, 1968 .
2. 3R. L. Coble, T. K. Gupta, G. C. Kuczynski, N. A. Hooton, and C. F. Gibbon ; pp.423 -44 inSintering and Related Phenomena . Gordon and Breach, Science Publishers, New York, 1967 .
3. The mechanism of sintering of copper