@article {Baumann:1999:0736-2501:49, title = "Method for the estimation of frequency-dependent sound pressures at the pipe exterior of throttling valves", journal = "Noise Control Engineering Journal", parent_itemid = "infobike://ince/ncej", publishercode ="ince", year = "1999", volume = "47", number = "2", publication date ="1999-03-01T00:00:00", pages = "49-55", itemtype = "ARTICLE", issn = "0736-2501", url = "https://ince.publisher.ingentaconnect.com/content/ince/ncej/1999/00000047/00000002/art00001", doi = "doi:10.3397/1.599291", keyword = "21.6.6, 11.3.1", author = "Baumann, Hans D. and Hoffmann, Heinfried", abstract = "", }