{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Electromagnetic Fields: Restrictions and Approximation","author_name":"Boris Z. Katsenelenbaum","thumbnail_url":"https://www.ebooknetworking.net/books/352/740/big3527403884.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-3527403884.html\">Electromagnetic Fields: Restrictions and Approximation</a>","width":400,"height":300}