{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Introduction To General Relativity And Cosmology (Essential Textbooks in Physics)","author_name":"Christian G Böhmer","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1786341182.html\">Introduction To General Relativity And Cosmology (Essential Textbooks in Physics)</a>","width":400,"height":300}