{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Formulas for natural frequency and mode shape","author_name":"Robert D Blevins","thumbnail_url":"https://www.ebooknetworking.net/books/089/874/big0898747910.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0898747910.html\">Formulas for natural frequency and mode shape</a>","width":400,"height":300}