@article{ref1,
title="Location vs. frequency of pure tones as a basis of fast discrimination",
journal="Acta psychologica",
year="1980",
author="Naatanen, R. and Porkka, R. and Merisalo, A. and Ahtola, S.",
volume="44",
number="1",
pages="31-40",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}