@article {Williams:1991:0736-2935:1173,
title = "ASPAK - A sound propagation package",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "1991",
volume = "1991",
number = "3",
publication date ="1991-12-02T00:00:00",
pages = "1173-1176",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1991/00001991/00000003/art00076",
keyword = "24, 76.4",
author = "Williams, W.",
abstract = "",
}