Liebst, L.S., Philpot, R., Heinskou, M.B. og Lindegaard, M.R. 2018. Bystander Intervention in Street Violence: Current Evidence and Implications for Practice. Samfundsøkonomen. 2018, 4 (sep. 2018). DOI:https://doi.org/10.7146/samfundsokonomen.v2018i4.140623.