About the Acidity-Catalytic Activity Relationship in Ionic Liquids: Application to the Selective Isobutene DimerizationL. Magna, J. Bildé, H. Olivier-Bourbigou, T. Robert and B. GilbertOil & Gas Science and Technology - Rev. IFP, 64 6 (2009) 669-679DOI: https://doi.org/10.2516/ogst/2009041