@article{ref1,
title="Age of walking and associated factors studied in a longitudinal sample of 296 Parisian children",
journal="Archives Francaises de Pediatrie",
year="1974",
author="Patois, E. and Roy, M. P. and Sempe, M. and Lellouch, J.",
volume="31",
number="9",
pages="875-886",
abstract="<p>[Abstract unavailable]</p><p>Language: fr</p>",
language="fr",
issn="0003-9764",
doi="",
url="http://dx.doi.org/"
}