Heine and Song 2011

Heine, Bernd and Song, Kyung-An. 2011. On the grammaticalization of personal pronouns. Journal of Linguistics 47. 587-630.

@article{jacquesestimative-heine11pronoms,
  author  = {Heine, Bernd and Song, Kyung-An},
  journal = {Journal of Linguistics},
  number  = {3},
  pages   = {587-630},
  title   = {On the grammaticalization of personal pronouns},
  volume  = {47},
  year    = {2011}
}