{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Lenses and Systems of Lenses Treated After the Manner of Gauss","author_name":"Charles Pendlebury","thumbnail_url":"https://www.ebooknetworking.net/books/115/237/big1152370200.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1152370200.html\">Lenses and Systems of Lenses Treated After the Manner of Gauss</a>","width":400,"height":300}