{"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 [ 1884 ]","author_name":"Charles Pendlebury","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-111233467X.html\">Lenses and Systems of Lenses: Treated After the Manner of Gauss [ 1884 ]</a>","width":400,"height":300}