Differentiation during encystment and excystment in Oxytricha fallax.

@article{Grimes1973DifferentiationDE,
  title={Differentiation during encystment and excystment in Oxytricha fallax.},
  author={Gary W. Grimes},
  journal={The Journal of protozoology},
  year={1973},
  volume={20 1},
  pages={92-104}
}