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Udo Schwertmann; Josef Friedl; Helge Stanjek. (1999).
From Fe(III) Ions to Ferrihydrite and then to Hematite. , 209(1), 215–223.
doi:10.1006/jcis.1998.5899
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research
