@article{ref1,
title="Behavior of preschool children during the solving of visual tasks given to them by others",
journal="Zeitschrift fur Experimentelle und Angewandte Psychologie",
year="1973",
author="Kleber, E. W.",
volume="20",
number="4",
pages="572-590",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-2712",
doi="",
url="http://dx.doi.org/"
}