Comparing the Caputo, Caputo-Fabrizio and Atangana-Baleanu derivative with fractional order: Fractional cubic isothermal auto-catalytic chemical systemK. M. SaadEur. Phys. J. Plus, 133 3 (2018) 94DOI: https://doi.org/10.1140/epjp/i2018-11947-6