Stewart 1967

Stewart, J. M. 1967. Tongue Root Position in Akan Vowel Harmony. Phonetica 16. 185–204.

@article{stewart1967,
  author  = {Stewart, J. M.},
  journal = {Phonetica},
  pages   = {185–204},
  title   = {Tongue Root Position in Akan Vowel Harmony},
  volume  = {16},
  year    = {1967}
}