Alternative: convert RIS to BibTeX format quickly online.

RIS is an old citation format that some journals still give citations in. Here’s how to convert RIS to convenient BibTeX format.

apt install cb2bib bibutils texlive

Convert RIS .ris file to BibTeX .bib format:

/usr/share/cb2bib/c2btools/ris2bib in.ris out.bib

Make PDF listing of references directly from .bib file.

/usr/share/cb2bib/c2btools/bib2pdf in.bib out.pdf