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1by Vatta,A.F., Krecek,R.C., Pearson,R.A., Smith,M.F., Stenson,M.O., Van Wijk,E.F., Harrison,L.J.S.
Published 2008Digital revistaSCIELO -
2by Spickett, A., Villiers, Etienne P. de, Boomker, J., Githiori, J.B., Medley, G.F., Stenson, M.O., Waller, P.J., Calitz, F.J., Vatta, A.F.
Published 2012-02Journal Article bibliotecaCGIAR