The Eruption of the Permanent Dentition of Chimpanzee.

@article{Nissen1964TheEO,
  title={The Eruption of the Permanent Dentition of Chimpanzee.},
  author={H W Nissen and A H Riesen},
  journal={American journal of physical anthropology},
  year={1964},
  volume={22 3},
  pages={
          285-94
        }
}