@data{nonparamet/2005, author = {Gonzalez, Libertad}, publisher = {ZBW - Leibniz Informationszentrum Wirtschaft}, title = {nonparametric-bounds-on-the-returns-to-language-skills}, year = {2005}, version = {1}, url = {https://jda-test.zbw.eu/dataset/nonparametric-bounds-on-the-returns-to-language-skills} }