@article {Li:1987:0736-2935:521,
title = "Active noise reducing earmuffs",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "1987",
volume = "1987",
number = "5",
publication date ="1987-09-15T00:00:00",
pages = "521-524",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1987/00001987/00000005/art00024",
keyword = "36.4, 74.3",
author = "Li, Cangpu",
abstract = "",
}