{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Propagation of radio waves","author_name":"M.; Kuznetsov, Boris, (trad.) Dolukhanov","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-5884170823.html\">Propagation of radio waves</a>","width":400,"height":300}