Introduction of the amine group at cycloaliphatic hydrocarbon (c-CHNH2) for the modified UNIFAC (Dortmund) model and validation in multicomponent systems containing cyclohexylamine Klauck, M.; Silbermann, R.; Metasch, R.; Unger, S.; Schmelzer, J.; Fluid Phase Equilibria 2012, 314, 169-179