@article{AhrensNeumannKollmannetal.2021,
  author    = {Kira F. Ahrens and Rebecca Neumann and Bianca Kollmann and Joana Brokelmann and Nina Margarete von Werthern and Aliaksandr Malyshau and Danuta Weichert and Beat Lutz and Christian Fiebach and Mich{\`e}le Wessa and Raffael Kalisch and Michael M. Plichta and Klaus Lieb and Oliver T{\"u}scher and Andreas Reif},
  title     = {Impact of COVID-19 lockdown on mental health in Germany: longitudinal observation of different mental health trajectories and protective factors},
  journal   = {Translational Psychiatry},
  volume    = {11},
  number    = {art. 392},
  pages     = {1 -- 10},
  doi       = {10.1038/s41398-021-01508-2},
  year      = {2021},
}