Matthewson et al. 2007

Matthewson, Lisa and Davis, Henry and Rullmann, Hotze. 2007. Evidentials as epistemic modals, Evidence from St'át'imcets. Linguistic Variation Yearbook 7. 201-254.

@article{jacquesestimative-matthewson07epistemic,
  author  = {Matthewson, Lisa and Davis, Henry and Rullmann, Hotze},
  journal = {Linguistic Variation Yearbook},
  pages   = {201-254},
  title   = {Evidentials as epistemic modals, Evidence from St'át'imcets},
  volume  = {7},
  year    = {2007}
}