{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Safety aspects of longwall mining in the Illinois coal basin","author_name":"Ernest A. Curth","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3HI/bigB003HIXM5C.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003HIXM5C.html\">Safety aspects of longwall mining in the Illinois coal basin</a>","width":400,"height":300}