@article{ZerbianBarnard2010,
  author    = {Sabine Zerbian and Etienne Barnard},
  title     = {Realisation of two adjacent high tones : Acoustic evidence from Northern Sotho},
  doi       = {10.2989/16073614.2010.519099},
  url       = {http://www.informaworld.com/smpp/title~content=t911319881~db=all},
  year      = {2010},
}