Can I put some references in the research article conclusion to clarify my future work?
The two main functions of a reference are:
- Make sure that you don't take credit for someone else's work.
- As an "external appendix", e.g. "you can read more about this in ..."
If your conclusion contains parts where function 1 applies you have to include the appropriate citations. If your conclusion contains a part where function 2 applies you can do so, but as a matter of style I would be reluctant to do so. A conclusion is there to emphasize the main points of your article. Adding a link to an "external appendix" is not helping.