{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"General Relativity and Matter: A Spinor Field Theory from Fermis to Light-Years (Fundamental Theories of Physics)","author_name":"M. Sachs","thumbnail_url":"https://www.ebooknetworking.net/books/902/771/big9027713812.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-9027713812.html\">General Relativity and Matter: A Spinor Field Theory from Fermis to Light-Years (Fundamental Theories of Physics)</a>","width":400,"height":300}