Lopez, JMP., Ceckiewicz, S., Defosse, C., Grange, P., & Delmon, B. (1984). Physicochemical Studies On the Genesis of Nickel-catalysts Supported On Sodium-modified Gamma-alumina. Applied Catalysis A: General, 12(3), 331-346. https://doi.org/10.1016/S0166-9834(00)81671-1 (Original work published 1984)