@article {van Willigenburg:1981:0736-2935:443,
title = "Rating of sound insulation by means of A-level reductions",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "1981",
volume = "1981",
number = "4",
publication date ="1981-10-06T00:00:00",
pages = "443-448",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1981/00001981/00000004/art00096",
keyword = "69, 51.3",
author = "van Willigenburg, J.J. and Nierop, C.A.",
abstract = "",
}