Marshall, Wesley E.; Ferenchak, Nicholas N. (2019-05-29). "Why cities with high bicycling rates are safer for all road users". Journal of Transport & Health. 13: 100539. doi:10.1016/j.jth.2019.03.004. ISSN2214-1405.
Marshall, Wesley E.; Ferenchak, Nicholas N. (2019-05-29). "Why cities with high bicycling rates are safer for all road users". Journal of Transport & Health. 13: 100539. doi:10.1016/j.jth.2019.03.004. ISSN2214-1405.