Oxygenated additives in bio-fuels: excess enthalpies of mixtures di-butyl ether + 1-propanol + heptane or + cyclohexane at 298.15 and 313.15 KF.E.M. Alaoui, F. Aguilar, M.J. González-Fernández, A. El Amarti and E. MonteroMATEC Web of Conferences, 3 (2013) 01027DOI: https://doi.org/10.1051/matecconf/20130301027