Jiménez Leiva, C. C., Amaya, I. and Correa, R. (2015) “Calculation and Prediction of Fugacity and Activity Coefficients in Binary Mixtures, using a Self-Regulated Fretwidth Harmony Search Algorithm”, Revista Ingenierías Universidad de Medellín, 16(30), pp. 67-95. doi: 10.22395/rium.v16n30a4.