Only two letters: The correspondence between Herbrand and Gödel

Wilfried Sieg. Only two letters: The correspondence between Herbrand and Gödel. Bulletin of Symbolic Logic, 11(2):172-184, 2005. [doi]

@article{Sieg05:0,
  title = {Only two letters: The correspondence between Herbrand and Gödel},
  author = {Wilfried Sieg},
  year = {2005},
  url = {http://www.math.ucla.edu/~asl/bsl/1102/1102-005.ps},
  researchr = {https://researchr.org/publication/Sieg05%3A0},
  cites = {0},
  citedby = {0},
  journal = {Bulletin of Symbolic Logic},
  volume = {11},
  number = {2},
  pages = {172-184},
}