文献后面的网址怎么提取的？
初次写论文，该期刊后面参考文献有的后面有[https://dx.doi.org/10.1016/j.engstruct.2003.11.005]东西，请问什么情况下加它呢，如何提取？万分感谢
[11] J. Kim, and Y. Seo, "Seismic design of low-rise steel frames with buckling-restrained braces", Engineering Structures, vol. 26, no.5,pp.543-551,2004.[https://dx.doi.org/10.1016/j.engstruct.2003.11.005]
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搜一下呗，很简单
是doi号，每篇sci论文都有一个，文章的网页上有的
文章pdf版首页一般都有
请问什么情况下加它呢，如何提取？
一般要求参考文献加DOI号，可以通过https://www.crossref.org/guestquery/，。输入文章名称等信息查询DOI号。
谢谢
顶
How do you reference a web page that lists no author?
https://www.apastyle.org/learn/faqs/web-page-no-author.aspx
Example:
All 33 Chile miners freed in flawless rescue. (2010, October 13). Retrieved from https://www.msnbc.msn.com/id/39625809/ns/world_news-americas/
MLA Works Cited: Electronic Sources (Web Publications)
https://owl.english.purdue.edu/owl/resource/747/08/，