@article {Xavier:2010:0736-2935:2447, title = "Noise barrier insertion loss in Portuguese highways", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "2010", volume = "2010", number = "9", publication date ="2010-06-13T00:00:00", pages = "2447-2455", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2010/00002010/00000009/art00074", keyword = "31.1, 52.3", author = "Xavier, S. and Samagaio, A.", abstract = "", }