@article {Sjosten:1987:0736-2935:549, title = "Two improved filter designs for active noise control", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1987", volume = "1987", number = "5", publication date ="1987-09-15T00:00:00", pages = "549-552", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1987/00001987/00000005/art00031", keyword = "74.3, 38.2", author = "Sjosten, Per and Eriksson, Per and Claesson, Ingvar", abstract = "", }