of the Tonga verb". Journal of African Languages, 2.72–92. Myers, Scott (1997) "OCP Effects in Optimality Theory", Natural Language & Linguistic Theory, Vol. 15, No. 4. Sharman, J.C. & A.E. Meeussen (1955) 'The representation of structural tones, with special reference to the tonal behaviour of the verb, in Bemba, Northern Rhodesia'. Africa, 25, 393-404. Philippson, Gérard (1998) Tone reduction vs. metrical attraction in the evolution of Eastern Bantu tone systems. Paris: INALCO. (online version) Meeussen's rule Sound laws