@article {Karnopp:1974:0736-2935:325, title = "Design and testing of reactive mufflers", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1974", volume = "1974", number = "1", publication date ="1974-09-30T00:00:00", pages = "325-330", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1974/00001974/00000001/art00069", keyword = "34.2, 38.5", author = "Karnopp, D. and Reed, J. and Margolis, D. and Dwyer, H.", abstract = "", }