Open Issues in Supervisory Control of Hybrid Electric Vehicles: A Unified Approach Using Optimal Control MethodsL. Serrao, A. Sciarretta, O. Grondin, A. Chasse, Y. Creff, D. Di Domenico, P. Pognant-Gros, C. Querel et L. ThibaultOil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 68 1 (2013) 23-33DOI: https://doi.org/10.2516/ogst/2012080