Ghesquiere, C., Lemaître, J.-P., & Herbillon, AJ. (1982). An Investigation of the Nature and Reducibility of Ni-hydroxy-montmorillonites Using Various Methods Including Temperature-programmed Reduction (tpr). Clay Minerals : journal of the European Clay Groups, 17(2), 217-230. https://doi.org/10.1180/claymin.1982.017.2.07 (Original work published 1982)