@article{ref1,
title="Industrial accidents and intelligence level in a group of apprentices in the mines of a coal basin in Northern France",
journal="Rassegna di medicina industriale e di igiene del Lavoro",
year="1957",
author="Christiaens, L. and Amoudru, C. and Claeys, C.",
volume="26",
number="5",
pages="411-414",
abstract="<p>[Abstract unavailable]</p><p>Language: fr</p>",
language="fr",
issn="0370-6249",
doi="",
url="http://dx.doi.org/"
}