An extremely useful skill but can not find it anywhere.

Here is my finding.

1. Create a list of referenced papers, and using “[ index ] “

Select them, click [Format] à [bullet and numbering…] à [customize] à [number format] to add [ ]

2.  In the document, insert a citation

Click [Insert] à [ reference ] à [ cross –reference ], in “Reference Type” choose Numbered item, then in “For which numbered item”, it will show the newly added list. Choose one from the list (check Insert as hyperlink)