{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"$a Äther und Relativitäts-Theorie + Geometrie und Erfahrung $l Englisch","author_name":"Albert Einstein","thumbnail_url":"https://www.ebooknetworking.net/books/B00/4UJ/bigB004UJCXBQ.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B004UJCXBQ.html\">$a Äther und Relativitäts-Theorie + Geometrie und Erfahrung $l Englisch</a>","width":400,"height":300}