THE STATE OF MANGANESE IN THE PHOTOSYNTHETIC APPARATUS DETERMINED BY X-RAY ABSORPTION SPECTROSCOPY V. K. YACHANDRA, R. D. GUILES, A. McDERMOTT, R. D. BRITT, J. COLE, S. L. DEXHEIMER, K. SAUER and M. P. KLEINJ. Phys. Colloques, 47 C8 (1986) C8-1121-C8-1128DOI: https://doi.org/10.1051/jphyscol:19868219