7楼: Originally posted by ipublish_SCI at 2017-08-23 06:30:37
Journals are coming up with creative ways to get more money from authors. This is like to have another publication, since it will give you a separate DOI. But you will need to pay $500. It's up to yo ...

10楼: Originally posted by xbc76 at 2017-08-28 14:46:09
还好，3个月
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