{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Electron optics and the electron microscope.","author_name":"V.K. et al Zworykin","thumbnail_url":"https://www.ebooknetworking.net/books/B00/0GF/bigB000GFZIVK.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B000GFZIVK.html\">Electron optics and the electron microscope.</a>","width":400,"height":300}