@article {Thorsson:2001:0736-2935:1031, title = "Optimisation of the surface impedance of noise barriers placed on both sides of a road", 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 = "1031-1034", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2001/00002001/00000005/art00021", keyword = "35.2.2, 31.1", author = "Thorsson, Pontus J.", abstract = "", }