@article {Hwang:2001:0736-2935:1239, title = "New active muffler system using variable length bypass exhaust pipes and a very low back pressure muffler", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "2001", volume = "2001", number = "5", publication date ="2001-08-27T00:00:00", pages = "1239-1242", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2001/00002001/00000005/art00062", keyword = "34.2, 37.7", author = "Hwang, Yoha and Lee, Jong Min and Kim, Kyung-Mok and Kim, Seung-Jong and Lee, Yong-Bok", abstract = "", }