@article{ref1,
title="Methods of calculating the cost of ambulance service",
journal="Sovetskoe Zdravookhranenie",
year="1984",
author="Boev, V. S.",
volume="",
number="8",
pages="16-19",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0038-5239",
doi="",
url="http://dx.doi.org/"
}