Proceeding of the international symposium on rare earths spectroscopy : Wroclaw, poland : september 10-15 1984 - International symposium on rare carths spectroscopy : ( Wroclaw, Poland : 1984); Legendziewicz, J.; Jezowska-Trzebiatowska, B. (Singapore : World scientific, 1985)
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Keywords: Tierras raras -- Congresos