Vertical versus horizontal: What is really at issue in the exclusion problem?

John Donaldson. Vertical versus horizontal: What is really at issue in the exclusion problem?. Synthese, 198(2):1381-1396, 2021. [doi]

@article{Donaldson21,
  title = {Vertical versus horizontal: What is really at issue in the exclusion problem?},
  author = {John Donaldson},
  year = {2021},
  doi = {10.1007/s11229-019-02126-8},
  url = {https://doi.org/10.1007/s11229-019-02126-8},
  researchr = {https://researchr.org/publication/Donaldson21},
  cites = {0},
  citedby = {0},
  journal = {Synthese},
  volume = {198},
  number = {2},
  pages = {1381-1396},
}