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Mermut, A.R., Lagaly, G. Baseline studies of the clay minerals society source clays: Layer-charge determination and characteristics of those minerals containing 2:1 layers. Clays Clay Miner. 49, 393–397 (2001). https://doi.org/10.1346/CCMN.2001.0490506
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DOI: https://doi.org/10.1346/CCMN.2001.0490506