{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Helicopter noise - blade slap: Part I. Review and theoretical study (NASA contractor report)","author_name":"John W Leverton","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0007I41JG.html\">Helicopter noise - blade slap: Part I. Review and theoretical study (NASA contractor report)</a>","width":400,"height":300}