@techreport{Guryan2008,
author = {Guryan, J. and Hurst, E. and Kearney, M.S.},
title= {Parental education and parental time with children},
year = {2008},
doi = {10.3386/w13993},
publisher = {NBER },
address = {Cambridge},
institution = {Working Paper},
number = {13993},
}