@article{ref1,
title="Estimating the detectability of target luminances",
journal="Human factors",
year="1972",
author="Krebs, M. J. and Teichner, W. H.",
volume="14",
number="6",
pages="511-519",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}