There are at least two use cases where one might want to list items in a bibliography under separate subsections with different numbering conventions.
- a CV, where you'd like to list journal papers, conference papers, workshop papers, etc under different categories (often needed in academic settings);
- an annotated bibliography, where you might need different sections for different topics being covered.
What I'd like is a method that allows me to specify names of subsections, and for an added bonus, different numbering conventions for each subsection, and then will list \cites in different sections as per my wishes.