@article {Jensen:1975:0093-9978:54, title = "Pneumatic Rock Drill Noise Can Be Reduced", journal = "Noise Control Engineering", parent_itemid = "infobike://ince/nce", publishercode ="ince", year = "1975", volume = "4", number = "2", publication date ="1975-03-01T00:00:00", pages = "54-63", itemtype = "ARTICLE", issn = "0093-9978", url = "https://ince.publisher.ingentaconnect.com/content/ince/nce/1975/00000004/00000002/art00001", doi = "doi:10.3397/1.2831987", author = "Jensen, J. W. and Visnapuu, A.", abstract = "", }