@article{Kohler2005,
author = {Kohler, H.-P. and Behrman, J.R. and Skytthe, A.},
title= {Partner + children = Happiness? The effects of partnerships and fertility on happiness},
year = {2005},
doi = {10.1111/j.1728-4457.2005.00078.x},
journal = {Population and Development Review},
volume = {31},
number = {3},
pages = {407--445},
}