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G. P. Das, P. Blöchl, O. K. Andersen, N. E. Christensen, and O. Gunnarsson
Phys. Rev. Lett. 65, 2084 – Published 15 October, 1990
DOI: https://doi.org/10.1103/PhysRevLett.65.2084
© 1990 American Physical Society