@article{UBHD-68237252,
  author={Hassel, Alexander J. and Johanning, Marvin and Grill, Sabine Katharina and Schr{\"o}der, Johannes and Wahl, Hans-Werner and Corcodel, Nicoleta and Klotz, Anna-Luisa and Rammelsberg, Peter and Zenth{\"o}fer, Andreas},
  title={Changes of tooth color in middle and old age},
  subtitle={a longitudinal study over a decade},
  year={2017},
  pages={459-463},
  language={eng},
  issn={1708-8240},
  volume={29},
  number={6},
  note={Gesehen am 28.03.2018},
  journal={Journal of esthetic and restorative dentistry},
  doi={10.1111/jerd.12334},
}
@book{UBHD-68296817,
  author={Johanning, Marvin},
  organization={Universit{\"a}t Heidelberg},
  title={Ver{\"a}nderungen der Farbe nat{\"u}rlicher Z{\"a}hne {\"u}ber ein Jahrzehnt},
  subtitle={Ergebnisse aus der Interdisziplin{\"a}ren L{\"a}ngsschnittstudie des Erwachsenenalters (ILSE)},
  address={Heidelberg},
  year={2017},
  pages={68 Bl{\"a}tter},
  language={ger},
  school={Dissertation,  Ruprecht-Karls-Universit{\"a}t Heidelberg,  2018},
  library={UB [Signatur: 2018 U 576]},
}