@article{ref1,
title="Organization of work and health safety for workers in the building trade and the construction materials industry in the GDR",
journal="Gigiena i Sanitariia",
year="1978",
author="Ivashkina, E. D. and Retnev, V. M.",
volume="",
number="11",
pages="105-106",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}