Declassified document MDDC (series). 1093. Separation of rare earths by ion exchange: pt. 3, Pilot-plant-scale operations [with list of references]; by P. H. Spedding, E. I. Fuhuer, T. A. Butler, E. M. Gludrow, M. Gobush, P. E. Porter, J. E. Powell, J. M. Wright.

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