Footnotes use asterisks, daggers, double daggers, Tai Chi, etc. Of course, if there are many footnotes, then superscript numbers are a better choice. Put it next to the author's name, and look at the magazine for specific meaning. Generally, you can find another text explanation. May be marked, author unit, correspondent author, equal contribution, author's death, etc.

Some authors who intend to publish SCI papers find that some authors' signatures will be followed by a number or a letter, which is actually a label of authors rank. After all, many SCI papers were written by several authors. Some magazines use Arabic numerals to mark authors, while others use English letters to mark authors, with the same function and purpose. Here I have to talk about the signature of the author of the SCI paper. The signature of SCI papers is different from that published in China. Let's have a look.