Stability of individual differences during paradoxical sleep in infants.

@article{Dittrichov1975StabilityOI,
  title={Stability of individual differences during paradoxical sleep in infants.},
  author={J Dittrichov{\~a} and Karel Paul},
  journal={Activitas nervosa superior},
  year={1975},
  volume={17 1},
  pages={49}
}