{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Uppsala spectral classification: Intrinsic colours and absolute magnitudes (Nova acta Regiae Societatis Scientiarum Upsaliensis ; ser. 4, v. 18, no. 1)","author_name":"Bertil Ljunggren","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0006CWS34.html\">The Uppsala spectral classification: Intrinsic colours and absolute magnitudes (Nova acta Regiae Societatis Scientiarum Upsaliensis ; ser. 4, v. 18, no. 1)</a>","width":400,"height":300}