Peltola, H., Luoma, J. (2016) Road accidents in Finland and Sweden. A comparison of associated factors, Finnish Transport Safety Agency. Trafi Publications 2-2016.
http://www.trafi.fi/filebank/a/1453805909/bf0e9e4f3f9492480bc0b561d4d99217/19608-Trafin_tutkimuksia_2-2016_-_FINENS_report_20_01_2016.pdf