@article{ref1,
title="The educational role of play in the preschool age",
journal="Zdravotnicka Pracovnice",
year="1976",
author="Ivanovová, L.",
volume="26",
number="3",
pages="149-152",
abstract="<p>[Abstract unavailable]</p><p>Language: cs</p>",
language="cs",
issn="0049-8572",
doi="",
url="http://dx.doi.org/"
}