Pasch, H. 2010. Norbert Cyffer, Erwin Ebermann and Georg Ziegelmeyer (eds.) 2009. Negation Patterns in West African languages. AAeO - Afrikanistik-Aegyptologie-Online. (Jan. 2010). DOI:https://doi.org/10.18716/ojs/aaeo/2010_3545.