The work discussed here was supported by grants from the National Science Foundation (DEL grants 070352 and 1065609) and the Hans Rausing Endangered Languages Documentation Programme (MDP grants 0085 and 0167).
Bullom So language, Atlantic languages -- Word order, Niger-Congo languages, Tense (Grammar), Languages in contact
Provides the outline of a paper that examines Proto-Niger-Congo features; the classification of Atlantic languages; The VP in Bulom and Atlantic, TNS-OP; A contact explanation: S-AUX-O-V-X from Mande; Other explanations, internal to Bullom, internal to Atlantic, and elsewhere; and comparison to (speculations as to) reconstructed Niger-Congo.
Childs, George Tucker. (2012) The Tense-OP syntagm: unity to NC word order, evidence from Bulom, South Atlantic.