Explanation of atomic displacement around lattice vacancies in diamond based on electron delocalizationM. Heidari Saani, H. Hashemi, A. Ranjbar, M. A. Vesaghi and A. ShafiekhaniEur. Phys. J. B, 65 2 (2008) 219-223DOI: https://doi.org/10.1140/epjb/e2008-00348-9