How can I check the DOI number of a foreign document?

What is DOI Number ？ Do you have your paper ？ I believe many papers have this question , A casual search on the Internet can also see a lot about DOI The problem of .
that , Today I will lead you to untie DOI The true face of ！

DOI The full name of the number is ：Digital Object Unique Identifier,DOI Number can be understood as the ID card code of a paper , Every article has a DOI Number .DOI Digital object identification is a naming system specially used to identify digital objects , Provide unique information for digital objects 、 Persistent identifier .
DOI Barcode or ID card vividly known as digital resources . Anywhere , Users can be fixed 、 Permanently link to DOI Corresponding content of .

Chinese papers ：
Access to ChinaDOI Website for inquiry
http://www.chinadoi.cn/portal/index.htm
This is the only one in Asia DOI Registration authority website , Chinese papers are registered here

English papers ：
Access to CrossRef Website for inquiry
http://www.crossref.org

One 、 Chinese papers DOI No. query method
Let's take a paper as an example , stay ChinaDOI To retrieve the , The search steps are shown in the following figure ：

1、 Enter the title of the article , Click to query .
Looking for DOI This column , Enter the title of the paper you want to find , And then search , You can get the corresponding DOI, As shown in the figure .

2、 Get the following page , You can find the corresponding DOI.

Two 、 Foreign language thesis DOI No. query method
There is also a relatively simple query website Baidu academic , Baidu academic is a better product of Baidu , Both Chinese and English can be queried .

For example, a document , The title is ：A characteristic property of affine collineations in a space of -spreads

1、 Enter Baidu academic , Enter document name , Click on “ use Baidu Search ”

2、 Click search , It can be concluded that ：

Look up the literature above DOI Method of number , Have you lost your studies ？

And in the absence of DOI In the case of No , We can also quickly find and download literature .

Advanced search

Research in Zhangqiao , Whether it is Chinese literature or foreign literature , It can be directly based on the title name 、 key word 、 author 、 Abstract and so on , Very convenient .

Other thesis writing skills ：
Is there a specific format for English papers ？
https://zhuanlan.zhihu.com/p/534636875
How to find English literature in the field of computer ？
https://zhuanlan.zhihu.com/p/533055678
On what website can you find English Literature ？
https://zhuanlan.zhihu.com/p/536125827