@article {Lee:2003:0736-2935:822, title = "Effect of non-uniform perforation in the concentric responator of the transmission loss and back pressure", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "2003", volume = "2003", number = "7", publication date ="2003-08-25T00:00:00", pages = "822-827", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2003/00002003/00000007/art00012", keyword = "35.7, 37.6", author = "Lee, Seong-Hyun and Ih, Jeong-Guon and Delaigue, Antoine", abstract = "", }