{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Problems in electrodynamics and special theory of relativity / Sbornik zadach po elektrodinamike i spetsialnoy teorii otnositelnosti","author_name":"Toptygin I. N. Batygin V. V.","thumbnail_url":"https://www.ebooknetworking.net/books/581/140/big5811409214.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-5811409214.html\">Problems in electrodynamics and special theory of relativity / Sbornik zadach po elektrodinamike i spetsialnoy teorii otnositelnosti</a>","width":400,"height":300}