Synthesis of BaFe12O19 by Oxi-Coprecipitation from Hydrochloric Steel Pickling Liquors R. Latorre, J. Dufour, J. García, E.M. Alcalá, C. Negro and F. López-Mateos J. Phys. IV France, 07 C1 (1997) C1-85-C1-86 DOI: 10.1051/jp4:1997123