@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} 
}