By Vladimirova M.   Stengel M.   De Vita A.   Baldereschi A.   Böhringer M.   Morgenstern K.   Berndt R.   Schneider W.-D.   in EPL (EUROPHYSICS LETTERS)

ISSN:0295-5075|56|2|254-260

Edp Sciences‎(2010)‎

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