@article{ref1,
title="Factory regulations drawn up by Hielle and Dittrich at Zyrardow in 1873 and 1885 and regarding safety measures (problems of health protection)",
journal="Archiwum Historii Medycyny (Warsz)",
year="1977",
author="Olszewski, A.",
volume="40",
number="1",
pages="81-88",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0004-0762",
doi="",
url="http://dx.doi.org/"
}