@article {Lapka:2012:0736-2935:5737, title = "Helicoidal resonators for passive noise control in ducted systems with practical application", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "2012", volume = "2012", number = "6", publication date ="2012-08-19T00:00:00", pages = "5737-5747", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2012/00002012/00000006/art00083", keyword = "37.6, 34.3", author = "Lapka, Wojciech", abstract = "", }