@article {Laak:1996:0736-2935:1029,
title = "Linear filter theory and causality constraints for active control in ducts",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "1996",
volume = "1996",
number = "6",
publication date ="1996-08-02T00:00:00",
pages = "1029-1034",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1996/00001996/00000006/art00007",
keyword = "37.7, 74.3",
author = "Laak, T.A. and Popovich, S.R.",
abstract = "",
}