@article{PfreundschuhAlsteensWienekeetal.2015,
  author    = {Moritz Pfreundschuh and David Alsteens and Ralph Wieneke and Cheng Zhang and Shaun R. Coughlin and Robert Tamp{\´e} and Brian K. Kobilka and Daniel J. M{\"u}ller},
  title     = {Identifying and quantifying two ligand-binding sites while imaging native human membrane receptors by AFM},
  journal   = {Nature Communications},
  volume    = {6},
  number    = {Art. 8857},
  pages     = {1 -- 7},
  doi       = {10.1038/ncomms9857},
  year      = {2015},
}