{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Jacobus Cornelius Kapteyn: Born Investigator of the Heavens (Astrophysics and Space Science Library)","author_name":"Pieter C. van der Kruit","thumbnail_url":"https://www.ebooknetworking.net/books/331/910/big3319108751.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-3319108751.html\">Jacobus Cornelius Kapteyn: Born Investigator of the Heavens (Astrophysics and Space Science Library)</a>","width":400,"height":300}