[Twinning tooth anomalies--nomenclature puzzle].

@article{Killian1991TwinningTA,
  title={[Twinning tooth anomalies--nomenclature puzzle].},
  author={Constance Marie Killian and Theodore P. Croll},
  journal={Die Quintessenz},
  year={1991},
  volume={42 3},
  pages={427-36}
}