{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Automatic train control in rail rapid transit","author_name":"United States. Congress. Office of Technology Assessment","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3TJ/bigB003TJA7NE.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003TJA7NE.html\">Automatic train control in rail rapid transit</a>","width":400,"height":300}