Wh-interrogative formats used for questioning and beyond: German warum (why) and wieso (why) and English why
by Maria Egbert, Monika Vöge
Link
Reference:
Maria Egbert, Monika Vöge, (2008), "Wh-interrogative formats used for questioning and beyond: German warum (why) and wieso (why) and English why", Discourse Studies, vol. 10, no. 1, pp. 17–36.
Bibtex Entry:
@ARTICLE{Egbert2008,
  author = "Maria Egbert and Monika Vöge", 
  doi = "10.1177/1461445607085583", 
  keywords = "EMCA, Business Communication, Interrogatives, Questions, Why, German", 
  journal = "Discourse Studies", 
  number = "1", 
  pages = "17–36", 
  title = "Wh-interrogative formats used for questioning and beyond: German warum (why) and wieso (why) and English why", 
  url = "https://journals.sagepub.com/doi/abs/10.1177/1461445607085583", 
  volume = "10", 
  year = "2008", 
}