@article{ref1,
title="Spectaculars for children and mental hygiene",
journal="Pediatria Prática",
year="1957",
author="Arruda, J.",
volume="28",
number="4",
pages="237-242",
abstract="<p>[Abstract unavailable]</p><p>Language: pt</p>",
language="pt",
issn="0031-3947",
doi="",
url="http://dx.doi.org/"
}