Electronic structure and optical properties of TaC from the first principles calculation M. Sahnoun, C. Daul, J. C. Parlebas, C. Demangeat and M. Driz Eur. Phys. J. B, 44 3 (2005) 281-286 Published online: 28 April 2005 DOI: 10.1140/epjb/e2005-00127-2