@article{ref1,
title="Longitudinal study of the influence of different physical activity programs on functional capacity of the boys from 11 to 18 years",
journal="Acta paediatrica Belgica",
year="1974",
author="Sprynarová, S.",
volume="28",
number="Suppl",
pages="204-213",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-6535",
doi="",
url="http://dx.doi.org/"
}