Houalla, M., Delannay, F., & Delmon, B. (1981). Influence of the Sodium Content On the State, the Dispersion, and the Repartition of Nickel-oxide Supported On Gamma-alumina. Journal of Physical Chemistry, 85(12), 1704-1709. https://doi.org/10.1021/j150612a023 (Original work published 1981)