% Third-party files are distributed unchanged with their original notices.
% sn-jnl.cls: inherited from the Zenodo v1 source archive; original LPPL notice retained.
% appendix.sty, etoolbox.sty, natbib.sty, cuted.sty (sttools), wrapfig.sty: LaTeX Project Public License, as specified in the individual files.
% threeparttable.sty: Donald Arseneau's permissive terms, retained in the file.
% CC BY 4.0 applies to author-owned work, not in place of these third-party licenses.
% LPPL: https://www.latex-project.org/lppl/
% CTAN package pages: https://ctan.org/pkg/appendix ; https://ctan.org/pkg/etoolbox ; https://ctan.org/pkg/natbib ; https://ctan.org/pkg/sttools ; https://ctan.org/pkg/wrapfig ; https://ctan.org/pkg/threeparttable