Lee, J Y, Punkkinen, M P J, Schönecker, S, Nabi, Z, Kádas, K, Zólyomi, V, Koo, Y M, Hu, Q M, Ahuja, R, Johansson, B, Kollár, J, Vitos, L & Kwon, S K 2018, ' The surface energy and stress of metals ', Surface Science, vol. 674, pp. 51-68 . https://doi.org/10.1016/j.susc.2018.03.008