Watkins 1962

Watkins, Calvert. 1962. Indo-European origins of the Celtic verb: I. The sigmatic aorist. Dublin: The Dublin institute for Advanced Study.

@book{jacquesestimative-watkins62celtic,
  author    = {Watkins, Calvert},
  publisher = {Dublin: The Dublin institute for Advanced Study},
  title     = {Indo-European origins of the Celtic verb: I. The sigmatic aorist},
  year      = {1962}
}