{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Theoretical Principles in Astrophysics and Relativity","author_name":"Norman R. Lebovitz, William H. Reid, Peter O. Vandervoort","thumbnail_url":"https://www.ebooknetworking.net/books/022/646/big0226469905.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0226469905.html\">Theoretical Principles in Astrophysics and Relativity</a>","width":400,"height":300}