@article{ref1,
title="Sports activities and physical effort tolerance in children and adolescents",
journal="Revue Medicale de Liege",
year="1980",
author="Geubelle, F.",
volume="35",
number="18",
pages="614-618",
abstract="<p>[Abstract unavailable]</p><p>Language: fr</p>",
language="fr",
issn="0370-629X",
doi="",
url="http://dx.doi.org/"
}