Denning 1987

Denning, K. 1987. Obligation and space: the origins of markers of obligative modality. Chicago Linguistic Society 23. 45-55.

@article{Denning-1987,
  author  = {Denning, K.},
  journal = {Chicago Linguistic Society},
  pages   = {45-55},
  title   = {Obligation and space: the origins of markers of obligative modality},
  volume  = {23},
  year    = {1987}
}