@article{ref1,
title="Problems of health and hygiene in school children attending and cared for by school day-care rooms",
journal="Roczniki Panstwowego Zakladu Higieny",
year="1976",
author="Zdunkiewicz, L. and Polus-Szeniawska, E. and Kuczyńska, A.",
volume="27",
number="6",
pages="697-704",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0035-7715",
doi="",
url="http://dx.doi.org/"
}