%0 Journal Article %A Jacob W Ward %A Jeremy J Michalek %A Constantine Samaras %A InĂªs Lima Azevedo %A Alejandro Henao %A Clement Rames %A Thomas P Wenzel %B iScience %D 2021 %G eng %N 1 %P 101933 %R 10.1016/j.isci.2020.101933 %T The impact of Uber and Lyft on vehicle ownership, fuel economy, and transit across U.S. cities %V 24 %8 01/2021 %! iScience