1. G.S. Whiting, G.L. Bolton, B.R. Sutherland, B.H. Rosof, Production of very fine hydrometallurgical powders, in: A. Lawley, A. Swanson (Eds.), Advances in Powder Metallurgy and Particulate Materials, Vol. 1, Metal Powder Industries Federation, American Powder Metallurgy Institute, NJ, 1993, pp. 107–117.
2. H. Tani, K. Oshita, US Patent 5588983, USA, 31 December 1996.
3. G.-M. Chow, P.E. Schoen, L.K. Kurihara, US Patent 5759230, USA, 2 June 1998.
4. B. Langner, A. May, R.-H. Wilde, US Patent 4818280, USA, 4 April 1989.
5. Preparation and structural characterization of an unprotected copper sol