Stöger-Pollach, M.Hébert, C.Schattschneider, P.Laister, A.2009-02-172009-02-172009-02-17200610.1017/S1431927606065160https://infoscience.epfl.ch/handle/20.500.14299/35382Retardation effects in valence - EELS spectratext::journal::journal article::research article