Action potentials recorded intra- and extracellularly from the isolated frog muscle fibre in Ringer's solution and in air.

@article{Hakansson1957ActionPR,
  title={Action potentials recorded intra- and extracellularly from the isolated frog muscle fibre in Ringer's solution and in air.},
  author={Catrin Hakansson},
  journal={Acta physiologica Scandinavica},
  year={1957},
  volume={39 4},
  pages={291-312}
}