Arbeitspapiere 1: 105–24. Wedekind, Klaus. 1990. "Gimo-Jan or Ben-Yem-Om: Benč - Yemsa phonemes, tones, and words." In Richard J. Hayward (ed.), Omotic language studies p. 68-184. London: School of Oriental and African Studies, University of London. External links Rapold, Christian. 2006. Towards a Grammar of Benchnon. Dissertation, Leiden University. (University webpage has a link to download a PDF of a Dutch summary.) https://www.universiteitleiden.nl/en/research/research-output/humanities/towards-a-grammar-of-benchnon Wedekind, Klaus. 1983. A Six-Tone Language in Ethiopia Wedekind, Klaus. 1985a. http://www.kwedekind.de///Eingang1///PdfFiles/1985_WhyBenchHasFiveLevelTonesToday.pdf Wedekind, Klaus. 1985a. http://www.kwedekind.de///Eingang1///PdfFiles/1985_Thoughts_when_Drawing_a_Map_of_Tone_Languages.pdf World Atlas of Language Structures information: http://wals.info/languoid/lect/wals_code_gim Website maintained by the Bench community, on culture and language, in the Bench language Languages of Ethiopia North Omotic languages Tonal languages Whistled languages