The LaTeX Package “longtwocolumn”

The longtwocolumn package was created in response to a request. With the \longtwocolumn command, it offers a variant of LaTeX’s \twocolumn allowing the single-column content of the optional argument to be splitted across several pages. Footnotes in the optional argument are not currently supported.

The package is hosted on GitLab under “KOMA-Script and Friends”. Further information can be found in the CTAN catalog entry.