@article{Aakvik2010,
author = {Aakvik, A. and Salvanes, K.G. and Vaage, K.},
title= {Measuring heterogeneity in the returns to education using an education reform},
year = {2010},
doi = {10.1016/j.euroecorev.2009.09.001},
journal = {European Economic Review },
volume = {54},
number = {4},
pages = {483--500},
}