@article{ref1,
title="Sport medicine in South Africa",
journal="South African medical journal SAMJ",
year="1977",
author="van Heerden, J. J.",
volume="51",
number="14",
pages="447-448",
abstract="<p>[Abstract unavailable]</p> <p>Language: af</p>",
language="af",
issn="0038-2469",
doi="",
url="http://dx.doi.org/"
}