@article {Jensen:1972:0736-2935:282, title = "Progress in suppressing the noise of the pneumatic rock drill", journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings", parent_itemid = "infobike://ince/incecp", publishercode ="ince", year = "1972", volume = "1972", number = "1", publication date ="1972-10-04T00:00:00", pages = "282-287", itemtype = "ARTICLE", issn = "0736-2935", url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/1972/00001972/00000001/art00051", keyword = "41.3, 14.3.2", author = "Jensen, James W. and Visnapuu, Aarne", abstract = "", }