@article{Katz1992,
author = {Katz, L.F. and Murphy, K.M.},
title= {Changes in relative wages, 1963–1987: Supply and demand factors},
year = {1992},
doi = {10.2307/2118323},
journal = {Quarterly Journal of Economics},
volume = {107},
number = {1},
pages = {35--78},
}