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3by Gallivan,Gordon J, Spickett,Andrea, Heyne,Heloise, Spickett,Arthur M, Horak,Ivan G
Published 2011Digital revistaSCIELO -
4by Baauw, Anna H., Heyne, Heloise, Williams, Kathryn S., Hill, Russell A., Heitkönig, Ignas M.A., Williams, Samual T.Article/Letter to editor bibliotecaWUR NL
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5by Horak,Ivan G., Jordaan,Adri J., Nel,Pierre J., van Heerden,Joseph, Heyne,Heloise, van Dalen,Ellie M.
Published 2015Digital revistaSCIELO