Boye and Harder 2012

Boye, Kasper & Peter Harder. 2012. A usage-based theory of grammatical status and grammaticalization. Language 88(1). 1–44.

@article{boye_usage-based_2012,
  author  = {Boye, Kasper and Harder, Peter},
  journal = {Language},
  number  = {1},
  pages   = {1–44},
  title   = {A usage-based theory of grammatical status and grammaticalization},
  volume  = {88},
  year    = {2012}
}