@article{ref1,
title="Observations in the SAM two-man space cabin simulator. III. System operator performance factors",
journal="Aerospace medicine",
year="1961",
author="McKenzie, R. E. and Hartman, B. O. and Welch, B. E.",
volume="32",
number="",
pages="603-609",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}