.ThermalSeparation.Media.IdealGasMixtures.BaseClasses.BaseIdealGasMixture.Choices.ReferenceEntropy.Temp .ThermalSeparation.Media.IdealGasMixtures.BaseClasses.BaseIdealGasMixture.Choices.ReferenceEntropy.TempTemporary type with choices for menus (until enumerations are available)