{"author_url":"https://blog.hatena.ne.jp/tam5917/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftam5917.hatenablog.com%2Fentry%2F2016%2F06%2F23%2F100930\" title=\"Semi-Riemann Geometry and General Relativity by  Shlomo Sternberg - \u5099\u5fd8\u9332\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","provider_url":"https://hatena.blog","width":"100%","provider_name":"Hatena Blog","height":"190","blog_title":"\u5099\u5fd8\u9332","version":"1.0","blog_url":"https://tam5917.hatenablog.com/","image_url":null,"author_name":"tam5917","url":"https://tam5917.hatenablog.com/entry/2016/06/23/100930","title":"Semi-Riemann Geometry and General Relativity by  Shlomo Sternberg","categories":["\u6570\u5b66"],"published":"2016-06-23 10:09:30","description":"archive.org"}