Enzymatic Iron Oxidation and Reduction in Magnetite Synthesizing Magnetospirillum Magnetotacticum Y. Fukumori, H. Oyanagi, K. Yoshimatsu, Y. Noguchi et T. Fujiwara J. Phys. IV France, 07 C1 (1997) C1-659-C1-662 DOI: 10.1051/jp4:19971270