In Helm-bibtex the function
bibtex-completion-candidatesretrieves selected fields (authors, editors, title, year, type, and key of the
entry) from the
.bib file. Is there a way to make it retrieve additional fields (eg
url fields) into the the second (alist) element?
See the documentation of the configuration variable
(setq bibtex-completion-additional-search-fields '(keywords))
See also the documentation on GitHub.