@article{ref1,
title="Brief history of gymnastics and sports",
journal="Minerva medica",
year="1951",
author="",
volume="42",
number="4",
pages="Varia, 54-6",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0026-4806",
doi="",
url="http://dx.doi.org/"
}