@article{ref1,
title="Morbidity among plantation workers in Ceylon",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1974",
author="Kröger, E. K. and Fernando, L. V.",
volume="24",
number="11",
pages="339-345",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}