1. Combining on-foot porters with vans for last-mile parcel deliveries: results of a study in central London;Allen;World Rev. Intermodal Transp. Res.,2021
2. New York City Hit UPS with $23M in Parking Fines in 2019;Baker,2020
3. Inside Documents Show How Amazon Chose Speed over Safety In Building its Delivery Network;Bandler,2019
4. R/AmazonDSPDrivers. Subreddit Stats;Boe,2022
5. Parcel Shipping Index 2021 (No. 21-MKTC-04823);Bowes,2021