@article{costello_schulman_mitchell_2009, title={Risk factors for a farm vehicle public road crash}, volume={41}, ISSN={["1879-2057"]}, DOI={10.1016/j.aap.2008.08.029}, number={1}, journal={ACCIDENT ANALYSIS AND PREVENTION}, author={Costello, Theresa M. and Schulman, Michael D. and Mitchell, Roger E.}, year={2009}, month={Jan}, pages={42–47} }
 @article{costello_schulman_luginbuhl_2003, title={Understanding the public health impacts of farm vehicle public road crashes in North Carolina}, volume={9}, ISBN={1074-7583}, DOI={10.13031/2013.12347}, number={1}, journal={Journal of Agricultural Safety and Health}, author={Costello, T. M. and Schulman, Michael and Luginbuhl, R. C.}, year={2003}, pages={19} }