The linguist Bernhard Schebeck travelled to the Nepabunna region in the 1970s, and wrote An Adnyamathanha-English Research Dictionary in 2000, which was "For private, or internal, use only – not for publication".
Bernhard Schebeck, a linguist, conducted research in the Nepabunna region during the 1970s and produced An Adnyamathanha-English Research Dictionary in 2000. This dictionary was marked "For private or internal use only – not for publication."