@article{ref1,
title="Sex differences in somatic and functional characteristics of preschool children",
journal="Human biology; an international record of research",
year="1977",
author="Parízková, J. and Cermák, J. and Horná, J.",
volume="49",
number="3",
pages="437-451",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7143",
doi="",
url="http://dx.doi.org/"
}