In GKP's Concrete Mathematics, there is a useful and interesting feature I would like to see in more books. The bibliography entries include:
a - the page numbers where the book or article is cited in the document.
b - a few lines of review of the cited work.
It is a kind of mix between bibliography, index and review.
Are there stable LaTeX packages/BibTeX styles to do (a) and (b) ?
EDIT: I wrote (b) initially as "comments about the work cited". It could be understood as "gathering comments made in the book about the work and reproducing them in the bibliography". This is not what I meant but this could be something useful for others.