@article{ref1,
title="Effects of infant development on mother-infant interactions",
journal="Child development",
year="1980",
author="Green, J. A. and Gustafson, G. E. and West, M. J.",
volume="51",
number="1",
pages="199-207",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0009-3920",
doi="",
url="http://dx.doi.org/"
}