@techreport{gubman2019shared,
  title = {Shared E-Scooters: Paving the Road Ahead}
  author = {Gubman, Joanna and Jung, Alexander and Kiel, Thomas and Strehmann, Jan},
  url = {https://www.agora-verkehrswende.de/fileadmin/Projekte/2019/E-Tretroller_im_Stadtverkehr/Agora-Verkehrswende_Shared-E-Scooters-Paving-the-Road-Ahead_WEB.pdf},
  year = {2019}
}