Andersen, Torben. 1993. Aspects of Berta phonology. Afrika und Übersee 76. 41–80. Dietrich Reimer Verlag GmbH.
@article{andersen1993aspects, author = {Andersen, Torben}, journal = {Afrika und Übersee}, pages = {41–80}, publisher = {Dietrich Reimer Verlag GmbH}, title = {Aspects of Berta phonology}, volume = {76}, year = {1993} }