http://www.fao.org/waicent/faoinfo/agricult/aga/AGAP/FRG/FEEDback/War/t1300b/t1300b0g.htm

An article by Meghen et al.

Genetic characterization and West African cattle by C. Meghen, D.E. MacHugh and D.G. Bradley (Department of Genetics, Trinity College, Dublin 2, Ireland)