On Monday, 12 Mar 2018 at 12:09, ST wrote:
> Hi,
>
> after reading the manual I didn't find a way to construct structured
> links referring to headings with endless depth, like:

I'm not entirely sure what your use case is but could you use a target,
i.e. something like <<target>>, to indicate where you want to link to?
Cf. section 4.2 of org manual on internal links.

-- 
Eric S Fraga via Emacs 27.0.50, Org release_9.1.6-191-g90607d