@article{GraetzSeissSchmidtetal.2019,
  author    = {Fabio M. Gr{\"a}tz and Martin Seiß and J{\"u}rgen Schmidt and Joshua Colwell and Frank Spahn},
  title     = {Sharp Gap Edges in Dense Planetary Rings},
  journal   = {The astrophysical journal : an international review of spectroscopy and astronomical physics},
  series    = {an Axisymmetric Diffusion Model},
  volume    = {872},
  number    = {2},
  doi       = {10.3847/1538-4357/ab007e},
  year      = {2019},
}