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2. Frenay, J., Traitement hydrométallurgique de matériaux oxydés de zinc, Ph.D. Thesis, Université Laval, Québec, 1989.
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5. Frenay, J., Ferlay, S. and Hissel, J., Zinc and lead recovery from EAF dusts by caustic soda process, 44th Electric Furnace Conference, Iron Steel Soc. AIME, 1986, p. 417–421. also in Disposal, Recycling and Recovery of Electric Furnace Exhaust Dust, Iron Steel Soc. AIME, 1987, p. 171–175.