\addbibresource
features an optional argument that allows you (among other things) to specify the location of a (local or remote) resource and the date type of the resource (e.g., bibtex
, ris
). See section 3.7.1 of the biblatex
documentation (ver. 3.15, dated August 19, 2020) for details.
Note that when using \addbibresource
(which was introduced in biblatex
v1.2), "files must be specified with their full name, including the extension", i.e., instead of
\bibliography{<mybibfile>}
you must use (assuming the standard .bib
file format)
\addbibresource{<mybibfile>.bib}
EDIT: Two additional notes about using \addbibresource
:
Contrary to \bibliography
, one can't use a comma-separated list to load multiple .bib
files (\bibliography{bibfile1,bibfile2}
). Instead, one must invoke \addbibresource
multiple times.
As PLK points out in his comment, loading a remote bibliography resource requires biber
as backend.