@article {Baade:1976:0093-9978:48,
title = "History of the Qualification Procedures of American National Standard S1.21-1972",
journal = "Noise Control Engineering",
parent_itemid = "infobike://ince/nce",
publishercode ="ince",
year = "1976",
volume = "7",
number = "2",
publication date ="1976-09-01T00:00:00",
pages = "48-51",
itemtype = "ARTICLE",
issn = "0093-9978",
url = "https://ince.publisher.ingentaconnect.com/content/ince/nce/1976/00000007/00000002/art00001",
doi = "doi:10.3397/1.2832034",
author = "Baade, Peter K.",
abstract = "",
}