{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Problem of Space Travel: The Rocket Motor (NASA History Series no. SP-4026)","author_name":"Hermann Noordung","thumbnail_url":"https://www.ebooknetworking.net/books/178/039/big1780392745.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1780392745.html\">The Problem of Space Travel: The Rocket Motor (NASA History Series no. SP-4026)</a>","width":400,"height":300}