{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Principles of transformer design","author_name":"Alfred Still","thumbnail_url":"https://www.ebooknetworking.net/books/551/945/big5519459010.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-5519459010.html\">Principles of transformer design</a>","width":400,"height":300}