//-->
Elemente de control optimal și aplicații în economie
Cruceanu, Ștefan, (1978)
Economic decision analysis
Fabrycky, Wolter Joseph, (1974)
Clustering and aggregation in economics
Fisher, Walter D., (1969)
Shapes of Engel curves and demand curves: Implications of the expenditure allocation model, applied to Dutch data
Somermeyer, W. H., (1972)
Shapes of Engel curves and demand curves ; implications of the expenditure allocation model, applied to dutch data
Somermeyer, W. H., (1971)
Shapes of Engel curves and demand curves : implications of the expenditure allocation model, applied to Dutch data