Modality's semantic map, Linguistic Typology, vol.2, pp.79-124, 1998. ,
Contrastive negation in Beja: the auxiliary verb rib, Afrika und Übersee, vol.85, pp.81-98, 2002. ,
URL : https://hal.archives-ouvertes.fr/halshs-00009688
A Grammatical Sketch of Beja ,
Roots and patterns in Beja (Cushitic): The issue of language contact with Arabic, Proceedings of the International Symposium Morphologies in Contact, 2009. ,