Reference: Mithun 1987

Mithun, Marianne. 1987. The grammatical nature and discourse power of demonstratives. Berkeley Linguistics Society 13. 184–194.

@article{mithun1987tuscarora,
  author  = {Mithun, Marianne},
  journal = {Berkeley Linguistics Society},
  pages   = {184–194},
  title   = {The grammatical nature and discourse power of demonstratives},
  volume  = {13},
  year    = {1987}
}