@article{ref1,
title="The nature, frequency, and age incidence of injuries in inter-scholastic football",
journal="Research quarterly. American Physical Education Association",
year="1933",
author="Neilson, N. P.",
volume="4",
number="3",
pages="78-90",
abstract="KEYWORDS: American football<p />",
language="en",
issn="2326-7402",
doi="10.1080/23267402.1933.10626634",
url="http://dx.doi.org/10.1080/23267402.1933.10626634"
}