Rojas, P. A., M. P. Álvarez, A. Peñaloza, A. Zúñiga, and S. Ordoñez. “Influence of the Control Atmosphere and Milling Time on the Morphology and Microstructure of Pure Copper and Copper-2.5 % Lithium Powders Produced by Mechanical Alloying”. Revista De Metalurgia, vol. 45, no. 3, June 2009, pp. 165-73, doi:10.3989/revmetalm.0762.