{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The reduction of ducted fan engine noise via a boundary integral equation method final report for the period April 1996 through April 1997, under grant number NCC-3-469 (SuDoc NAS 1.26:206991)","author_name":"J. Tweed","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00010YPMI.html\">The reduction of ducted fan engine noise via a boundary integral equation method final report for the period April 1996 through April 1997, under grant number NCC-3-469 (SuDoc NAS 1.26:206991)</a>","width":400,"height":300}