@article{Mullen2011,
author = {Mullen, K. and Ardia, D. and Gil, D. and Windover, D. and Cline, J. },
title= {DEoptim: An R package for global optimization by differential evolution},
year = {2011},
doi = {10.18637/jss.v040.i06},
volume = {40},
number = {6},
pages = {1--26},
}