[Tex/LaTex] Reduce font size of bibliography; overfull bibliography


I am using Biber (backend of biblatex) to make the bibliography. I have two questions about the bibliography.

  1. I want to use a reduced font ONLY for the bibliography (not the citation in the text, that in my text is in numeric style e.g. [1], [2] etc.). In particular, the font of my text is 11 pt and I want to print the bibliography in 10 pt.

  2. In the bibliography some text exceeds the text cage, because the ISBN is printed without a break. What is the command I should use for avoid this overfull hbox?

Best Answer

I found this command:


and work well. (first question).

For the second question, for now I used to break the ISBN with line (XXX-X-XXXX-XXXX-X, standard 13-number ISBN code). But I'm searching for a more general rule to avoid overfull in bibliography (for example, when I tried to use small font, a DOI URL exceeded the cage text; in this case a manual break doesn't work, because the URL doesn't work after text break)

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