Excess enthalpies of binary and ternary mixtures containing dibutyl ether (DBE), 1-butanol, and heptane at T = 298.15 K and 313.15 K Aguilar, F.; Alaoui, F.E.; Segovia, J.J.; Villamañán, M.A.; Montero, E.A.; The Journal of Chemical Thermodynamics 2010, 42, 28-37