{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Foundations of Einstein's Theory of Gravitation","author_name":"Erwin Freundlich","thumbnail_url":"https://www.ebooknetworking.net/books/110/760/big1107601371.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1107601371.html\">The Foundations of Einstein&#039;s Theory of Gravitation</a>","width":400,"height":300}