Kitchen et al. 2009

Kitchen, Andrew and Ehret, Christopher and Assefa, Shiferaw and Mulligan, Connie J. 2009. Bayesian phylogenetic analysis of Semitic languages identifies an Early Bronze Age origin of Semitic in the Near East. Proceedings of the royal society B 276. 2703–2710.

@article{jacquesestimative-kitchen09semitic,
  author  = {Kitchen, Andrew and Ehret, Christopher and Assefa, Shiferaw and Mulligan, Connie J.},
  journal = {Proceedings of the royal society B},
  number  = {1668},
  pages   = {2703–2710},
  title   = {Bayesian phylogenetic analysis of Semitic languages identifies an Early Bronze Age origin of Semitic in the Near East},
  volume  = {276},
  year    = {2009}
}