{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Introduction to the Classical Theory of Particles and Fields","author_name":"Boris Kosyakov","thumbnail_url":"https://www.ebooknetworking.net/books/364/207/big3642074227.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-3642074227.html\">Introduction to the Classical Theory of Particles and Fields</a>","width":400,"height":300}