Bergsland and Vogt 1962

Bergsland, Knut and Vogt, Hans. 1962. On the Validity of Glottochronology. Current Anthropology 3.2. 115-153.

@article{jacquesestimative-bergsland62glotto,
  author  = {Bergsland, Knut and Vogt, Hans},
  journal = {Current Anthropology},
  pages   = {115-153},
  title   = {On the Validity of Glottochronology},
  volume  = {3.2},
  year    = {1962}
}