@article {Bernhard:1994:0736-2935:421, title = "The state of the art of active-passive noise control", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1994", volume = "1994", number = "1", publication date ="1994-05-01T00:00:00", pages = "421-428", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1994/00001994/00000001/art00066", keyword = "38.2, 46.4", author = "Bernhard, Robert J.", abstract = "", }