1. Murakami, Y.: Half a century of automatic transmissions for vehicles. J. Jpn Soc. Tribol. 50–9, 665–670 (2005)
2. Caines, A.J., Haycock, R.F., Hillier, J.E.: Other lubricants for road vehicles. Automotive Lubricants Reference Book, 2nd edn, Chap. 7, pp. 277–294, Professional Engineering Publishing, London, ISBN 1-86058-471-3 (2004)
3. Mitsui, H.: Trends and requirements of fluids for metal pushing belt type CVTs. J. Jpn Soc. Tribol. 45–6, 13–18 (2000)
4. Narita, K., Priest, M.: Metal-metal friction characteristics and the transmission efficiency of a metal V-belt type continuously variable transmission. Proc. Instn Mech. Eng. J: J. Eng. Tribol. 221(J1), 11–26 (2007)
5. Spikes, H.A.: History and mechanism of ZDDP. Tribol. Lett. 17–3, 469–489 (2004)