@article{ref1,
title="Predictor operator in pursuit and compensatory tracking",
journal="Human factors",
year="1980",
author="Gottlieb, G. L. and Agarwal, G. C. and Jaeger, Robert J.",
volume="22",
number="4",
pages="497-506",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}