@article{ref1,
title="Certain experiences with the automation in aviation",
journal="Pracovni Lekarstvi",
year="1960",
author="Dvorak, Jiri",
volume="12",
number="",
pages="518-520",
abstract="<p>[Abstract unavailable]</p><p>Language: cs</p>",
language="cs",
issn="0032-6291",
doi="",
url="http://dx.doi.org/"
}