@misc{HeineReh1982,
  author    = {Bernd Heine and Mechthild Reh},
  title     = {Patterns of grammaticalization in African languages},
  booktitle = {K{\"o}lner Universalienprojekt: Arbeiten des K{\"o}lner Universalien-Projekts ; Nr. 47},
  series    = {Arbeiten des K{\"o}lner Universalien-Projekts : akup},
  number    = {47},
  type      = {workingpaper},
  pages     = {164},
  year        = {1982},
}