@article {Challen:1980:0736-2935:997, title = "An engineering index of diesel engine idling noise", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1980", volume = "1980", number = "1", publication date ="1980-12-08T00:00:00", pages = "997-1000", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1980/00001980/00000001/art00009", keyword = "13.2.1, 11.6.4", author = "Challen, B.J. and Kuczora, A.", abstract = "", }