@article {van der Toorn:2001:0736-2935:2396, title = "Sound emission by motor vehicles on motorways in The Netherlands: 1974-2000", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "2001", volume = "2001", number = "3", publication date ="2001-08-27T00:00:00", pages = "2396-2401", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2001/00002001/00000003/art00094", keyword = "13.2, 52.3", author = "van der Toorn, J.D. and van den Dool, T.C. and van Vliet, W.J.A.", abstract = "", }