{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Comparative study of pillar load transfer associated with multiple-seam mining","author_name":"Rudy J. Matetic","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3HI/bigB003HIXGFI.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003HIXGFI.html\">Comparative study of pillar load transfer associated with multiple-seam mining</a>","width":400,"height":300}