Generality of Fitts' Law under differential error instruction.

@article{Robinson1967GeneralityOF,
  title={Generality of Fitts' Law under differential error instruction.},
  author={Gustabus H. Robinson and Richard Leifer},
  journal={Perceptual and motor skills},
  year={1967},
  volume={25 3},
  pages={
          901-4
        }
}