{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A computer program for calculating principal stresses in photoelasticity","author_name":"M. Gyenge","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B007ELMA0G.html\">A computer program for calculating principal stresses in photoelasticity</a>","width":400,"height":300}