1. R. Mohan Iyengar, B. Fedewa, Y.W. Wang, D.F. Maatz Jr., and R.L. Hughes: SAE Int., 2008, pp 1–14.
2. 2. Yu, Y., C. Wang, S. Chen and Z. Lu, Adv. Mater. Res., 2011. 339: pp 375-78.
3. 3. Choi, H.S., G.H. Park, W.S. Lim and B.M. Kim, J. Mech. Sci. Technol., 2011. 25: pp 1543-50.
4. 4. Kong, J.P., T.K. Han, K.G. Chin, B.G. Park and C.Y. Kang, Mater. Des., 2013. 54(1): pp 598-609.
5. 5. Sommer, S., IOP Conf. Series: Materials Science and Engineering, 2010. 10(1): pp 1-10.