@article{ref1,
title="Léon Chagnaud: an innovative entrepreneur in the public works sector during the late 19th and early 20th centuries",
journal="Histoire, economie et société",
year="1999",
author="Berthonnet, A.",
volume="18",
number="3",
pages="613-642",
abstract="<p>[Abstract unavailable]</p><p>Language: fr</p>",
language="fr",
issn="0752-5702",
doi="",
url="http://dx.doi.org/"
}