'I don’t know' as a pre-positioned hedge
by Ann Weatherall
Link
Reference:
Ann Weatherall, (2011), "'I don’t know' as a pre-positioned hedge", Research on Language and Social Interaction, vol. 44, no. 4, pp. 317–337.
Bibtex Entry:
@ARTICLE{Weatehrall2011,
  author = "Ann Weatherall", 
  doi = "10.1080/08351813.2011.619310", 
  keywords = "Discursive Psychology, Epistemics", 
  journal = "Research on Language and Social Interaction", 
  number = "4", 
  pages = "317–337", 
  title = "'I don’t know' as a pre-positioned hedge", 
  url = "https://www.tandfonline.com/doi/abs/10.1080/08351813.2011.619310", 
  volume = "44", 
  year = "2011", 
}