@article{ref1,
title="The choice of toys in view of the age and sex of children of the pre-school age",
journal="Ceskoslovenská Hygiena",
year="1962",
author="Kotaskova, J.",
volume="7",
number="",
pages="107-112",
abstract="<p>[Abstract unavailable]</p><p>Language: cs</p>",
language="cs",
issn="0009-0573",
doi="",
url="http://dx.doi.org/"
}