1. American Public Transportation Association, 2020. Public Transportation Ridership Report: Fourth Quarter 2019. Accessed from: https://www.apta.com/wp-content/uploads/2019-Q4-Ridership-APTA.pdf.
2. Workplace concentration of immigrants;Andersson;Demography,2014
3. Berrebi, S., Gibbs, T., Joshi, S., Watkins, K.E., 2020. On ridership and frequency. arXiv preprint: 2002.02493.
4. Invest in the ride: a 14 year longitudinal analysis of the determinants of public transport ridership in 25 north American cities;Boisjoly;Transport. Res. Part A,2018
5. Brown, A.E., Blumenber, E., Taylor, B.D., Ralph, K., Voulgaris, C.T., 2016. A taste for transit? analyzing public transit use trends among youth.