Hi Could exist a more general case than footnotes?
A kind of footnotes that work between different files? Maybe the syntax could be [n:LABEL@ID] Where the ID would be the unique ID of the heading. Example: ** Reference :PROPERTIES: :ID: 978-84-362-7195-9 :END:A “comment line” starts with a hash character (#) [n:102@978-84-362-7195-9] and either a whitespace character or the immediate end of the line.
... ** Notes [n:102@978-84-362-7195-9] The hash character is important in orgmode.
