@article{KoetzPlantenberg1998,
  author    = {Koetz, Joachim and Plantenberg, Thomas},
  title     = {Self-assembled polyanion-polycation systems},
  isbn      = {0-9585708-1-7},
  year      = {1998},
  language  = {en}
}
@article{PlantenbergKoetz2001,
  author    = {Plantenberg, Thomas and Koetz, Joachim},
  title     = {Liquid Crystalline Polyanion/Polycation/Water Systems},
  year      = {2001},
  language  = {en}
}