The nice part is that this information is standardized through the digital object identifier (doi).
Ex: 10.14778/3611479.3611527
This doi takes you to:
https://dl.acm.org/doi/10.14778/3611479.3611527
In general if you have a DOI and you want a URL you can go to https://dx.doi.org/ to resolve it.
one can even make a get_pdf_by_doi() by employing curl and sci-hub
get_pdf_by_doi(){ wget --recursive --span-hosts --no-directories --accept '*.pdf' --quiet --execute robots=off https://sci-hub.tw/${1} ;}
one can even make a get_pdf_by_doi() by employing curl and sci-hub