{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Flight without formulae; simple discussions on the mechanics of the aeroplane","author_name":"John Henry Ledeboer, Emile Duchêne","thumbnail_url":"https://www.ebooknetworking.net/books/B00/9WX/bigB009WXI6AW.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B009WXI6AW.html\">Flight without formulae; simple discussions on the mechanics of the aeroplane</a>","width":400,"height":300}