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Thermal evolution crystal structure and cation valence of Mn in substituted Ba-β-Al2O3 prepared via coprecipitation in aqueous medium

G. Groppi, P. Forzatti, M. Bellotto, 1999 .

Preparation and characterization of hexaaluminate-based materials for catalytic combustion

G. Groppi, P. Forzatti, M. Bellotto, 1993 .