{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Covariant Electrodynamics: A Concise Guide","author_name":"John M. Charap","thumbnail_url":"https://www.ebooknetworking.net/books/B00/5JI/bigB005JIJR6G.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B005JIJR6G.html\">Covariant Electrodynamics: A Concise Guide</a>","width":400,"height":300}