By Nagel L.   Blignaut A. S.   Cronje J. C.   in Interactive Learning Environments

ISSN:1049-4820|17|1|37-51

Routledge Ltd‎(2009)‎

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By Nagel L.   Zanuttig M.   Forbes M. R.   in Canadian Journal of Zoology

ISSN:1480-3283|89|3|213-218

NRC Research Press‎(2011)‎

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By Manley M. E.   Fultz B.   Nagel L. J.   in Philosophical Magazine B

ISSN:1463-6417|80|6|1167-1178

Taylor & Francis Ltd‎(2000)‎

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