{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Design and Performance of Underground Excavations: Isrm Symposium, Cambridge, U.K., 3-6 September 1984 = Conception Et Comportement Des Excavations Souterraines","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/072/770/big0727702114.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0727702114.html\">Design and Performance of Underground Excavations: Isrm Symposium, Cambridge, U.K., 3-6 September 1984 = Conception Et Comportement Des Excavations Souterraines</a>","width":400,"height":300}