@article{WangDingKrispetal.2019,
  author    = {Lina Wang and Linfang Ding and Jukka M. Krisp and Xiang Li},
  title     = {Design und Implementierung von Reisezeit-Kartogrammen = Design and Implementation of Travel-time Cartograms},
  journal   = {KN - Kartographische Nachrichten: Journal of Cartography and Geographic Information},
  volume    = {2018},
  number    = {1},
  pages     = {13 -- 20},
  year      = {2019},
}