Neugebauer, Jörg Theory, Fritz Haber Institute, Max Planck Society;
Smith, A. R., Feenstra, R. M., Greve, D. W., Shin, M.-S., Skowronski, M., Neugebauer, J., et al. (1999). GaN(0001) surface structures studied using scanning tunneling microscopy and first-principles total energy calculations. Surface Science, 423(1), 70-84. doi:10.1016/S0039-6028(98)00903-0.