On Logics Intermediate between Intuitionistic and Classical Predicate Logic

@article{Umezawa1959OnLI,
  title={On Logics Intermediate between Intuitionistic and Classical Predicate Logic},
  author={Toshio Umezawa},
  journal={J. Symb. Log.},
  year={1959},
  volume={24},
  pages={141-153}
}