@article {Oinonen:2004:0736-2935:993, title = "A noise-cancelling active sound transmission hearing protector", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "2004", volume = "2004", number = "9", publication date ="2004-09-20T00:00:00", pages = "993-1000", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2004/00002004/00000009/art00089", keyword = "61, 36.4", author = "Oinonen, Mika K. and Raittinen, Harri J. and Kivikoski, Markku A.", abstract = "", }