Do neurons have a voltage or a current threshold for action potential initiation?

Christof Koch, Öjvind Bernander, Rodney J. Douglas. Do neurons have a voltage or a current threshold for action potential initiation?. Journal of Computational Neuroscience, 2(1):63-82, 1995. [doi]

@article{KochBD95,
  title = {Do neurons have a voltage or a current threshold for action potential initiation?},
  author = {Christof Koch and Öjvind Bernander and Rodney J. Douglas},
  year = {1995},
  doi = {10.1007/BF00962708},
  url = {http://dx.doi.org/10.1007/BF00962708},
  researchr = {https://researchr.org/publication/KochBD95},
  cites = {0},
  citedby = {0},
  journal = {Journal of Computational Neuroscience},
  volume = {2},
  number = {1},
  pages = {63-82},
}