@article{li2021life, title = {Life Cycle Greenhouse Gas Emissions for Last-Mile Parcel Delivery by Automated Vehicles and Robots} author = {Li, Luyao and He, Xiaoyi and Keoleian, Gregory A. and Kim, Hyung Chul and De Kleine, Robert and Wallington, Timothy J. and Kemp, Nicholas J.}, journal = {Environmental Science & Technology}, url = {https://doi.org/10.1021/acs.est.0c08213}, year = {2021} }