@article {Guy:1989:0736-2501:117,
title = "A Preliminary Study Model for the Absorption or Transmission of Sound in Multi-Layer Systems",
journal = "Noise Control Engineering Journal",
parent_itemid = "infobike://ince/ncej",
publishercode ="ince",
year = "1989",
volume = "33",
number = "3",
publication date ="1989-11-01T00:00:00",
pages = "117-123",
itemtype = "ARTICLE",
issn = "0736-2501",
url = "https://ince.publisher.ingentaconnect.com/content/ince/ncej/1989/00000033/00000003/art00003",
doi = "doi:10.3397/1.2827749",
author = "Guy, R. W.",
abstract = "",
}