@article{BastianRobelSchmidtetal.2021,
  author    = {Philipp U. Bastian and Nathalie Robel and Peter Schmidt and Tim Schrumpf and Christina G{\"u}nter and Vladimir Roddatis and Michael U. Kumke},
  title     = {Resonance energy transfer to track the motion of lanthanide ions},
  journal   = {Biosensors : open access journal},
  series    = {what drives the intermixing in core-shell upconverting nanoparticles?},
  volume    = {11},
  number    = {12},
  doi       = {10.3390/bios11120515},
  year      = {2021},
}