1. R.M. German: Sintering: From Empirical Observations to Scientific Principles, Elsevier, Oxford, 2014.
2. R. Bollina and R.M. German: Int. J. Refract. Met. Hard Mater., 2004, vol. 22, pp. 117–27.
3. R. Ganesan, A. Griffo, and R.M. German: Metall. Mater. Trans. A, 1998, vol. 29A, pp. 659–64.
4. C. Binet, K.L. Lencoski, D.F. Heaney, and R.M. German: Metall. Mater. Trans. A, 2004, vol. 35A, pp. 3833–41.
5. S. J. Park, S. H. Chung, J. L. Johnson, and R. M. German: Advances in Powder Metallurgy and Particulate Materials -2006, Metal Powder Industries Federation, Princeton, NJ, Part 5, 2006, pp.14–24.