Hydrogen Solubility in Heavy Undefined Petroleum Fractions Using Group Contributions MethodsHumberto Aguilar-Cisneros, Verónica Uribe-Vargas, Bernardo Carreón-Calderón, José Manuel Domínguez-Esquivel et Mario Ramirez-de-SantiagoOil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 72 1 (2017) 2DOI: https://doi.org/10.2516/ogst/2016023