{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Geometrical investigation of the formation of images in optical instruments. Embodying the results o","author_name":"Rohr, Moritz von","thumbnail_url":"https://www.ebooknetworking.net/books/111/035/big1110355017.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1110355017.html\">Geometrical investigation of the formation of images in optical instruments. Embodying the results o</a>","width":400,"height":300}