N. Bay, The state of the art in cold forging lubrication, Journal of Materials Processing Technology, vol.46, issue.1-2, pp.46-65, 1994.
DOI : 10.1016/0924-0136(94)90100-7

T. Schrader, M. Shirgaokar, and T. Altan, A critical evaluation of the double cup extrusion test for selection of cold forging lubricants, Journal of Materials Processing Technology, vol.189, issue.1-3, pp.189-225, 2007.
DOI : 10.1016/j.jmatprotec.2006.11.229

L. Lazzarotto, L. Dubar, and A. , Dubois, et. al A selection methodology for lubricating oils in cold metal forming processes, Wear, pp.215-216, 1998.