{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Low-frequency vibrations produced by surface mine blasting over abandoned underground mines","author_name":"D. E. Siskind","thumbnail_url":"https://www.ebooknetworking.net/books/B00/40N/bigB0040NOK2W.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0040NOK2W.html\">Low-frequency vibrations produced by surface mine blasting over abandoned underground mines</a>","width":400,"height":300}