@article{Lee2002,
author = {Lee, R.D. and Kramer, K.L. },
title= {Children’s economic roles in the Maya family life cycle: Cain, Caldwell, and Chayanov revisited},
year = {2002},
doi = {10.1111/j.1728-4457.2002.00475.x},
journal = {Population and Development Review},
volume = {28},
pages = {475--499},
}