{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Elements of vector algebra","author_name":"Ludwik Silberstein","thumbnail_url":"https://www.ebooknetworking.net/books/117/836/big1178368009.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1178368009.html\">Elements of vector algebra</a>","width":400,"height":300}