Reference: Everett 1993

Everett, Daniel L. 1993. Sapir, Reichenbach, and the syntax of tense in Pirahã. Pragmatics & Cognition 1(1). 89–124. Amsterdam/Philadephia: John Benjamins Publishing Company.

https://doi.org/10.1075/pc.1.1.07eve

@article{everett1993piraha,
  address   = {Amsterdam/Philadephia},
  author    = {Everett, Daniel L.},
  journal   = {Pragmatics & Cognition},
  number    = {1},
  pages     = {89–124},
  publisher = {John Benjamins Publishing Company},
  title     = {Sapir, Reichenbach, and the syntax of tense in Pirahã},
  url       = {https://doi.org/10.1075/pc.1.1.07eve},
  volume    = {1},
  year      = {1993}
}