Hi Ihor

The headings could be in different files, yes.

AFAIK, citations don't link two exact points. Footnotes do.

I don't understand the option of "include", but I think it wouldn't be 
the case.


I really think footnotes would be a particular case of this option.

** Reference in file A
: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 in file B

*[n:102@978-84-362-7195-9]* The hash character is important in orgmode.



Thanks for reading


On 07/10/2023 13:12, Ihor Radchenko wrote:
> Maske<maske1foro@gmail.com>  writes:
>
>> 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.
> I am not sure if I understand. Is the above in different files?
>
> Random suggestions:
>
> 1. Use citations
> 2. Use a normal footnote and #+include statement in its definition to
>     incorporate a text from a different file during export.
>