One of the sci papers is mainly written by people. Basically all the pictures were drawn by him, the words were compiled by him, and the idea was put forward by him (including the correspondent). Generally speaking, 985 or 2 1 1 generally thinks that a work is the direct owner of the article.

The workload of the second job is much less, and it is generally an auxiliary job. Of course, there are also schools that recognize two works, provided that one is a correspondent (your tutor).

So the thesis mainly looks at one work. If one work is communication, it is two. Even so, two works are not as good as one.