@article{Schacht2014,
author = {Schacht, R. and Rauch, K.L. and Borgerhoff Mulder, M. },
title= {Too many men: The violence problem?},
year = {2014},
doi = {10.1016/j.tree.2014.02.001},
journal = {Trends in Ecology and Evolution },
volume = {29},
number = {4},
pages = {214--222},
}