@article{ref1,
title="Asymmetry in human discrimination learning: feature positive effect or focus of hypothesis effect?",
journal="Acta psychologica",
year="1989",
author="Fiedler, K. and Eckert, C. and Poysiak, C.",
volume="70",
number="2",
pages="109-127",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}