Towards a sustainable phosphorus network in Africa by M.G. Manzeke-Kangara, M.S.A. Blackwell, W.J. Brownlie, E. Zaja, K.A. Frimpong, A.A. Asante, D. Cordell, J.J. Elser, E.K. Gbekor, K. Harris-Gilliam, D. Touhami, J.X. Kugbe, I.H. Lewis, V. Logah, M. Miyittah, E.K. Nartey, M. Owusu, Z. Oyetunde-Usman, C.K. Tay, F.M. Tetteh, P.M. Haygarth, B.M. Spears

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