bibtex-field-listbibtex-field-list is a compiled Lisp function in `
bibtex.el'. (bibtex-field-list ENTRY-TYPE) Return list of allowed fields for entry ENTRY-TYPE. More specifically, the return value is a cons pair (REQUIRED . OPTIONAL), where REQUIRED and OPTIONAL are lists of the required and optional field names for ENTRY-TYPE according to `bibtex-BibTeX-entry-alist' and friends, `bibtex-include-OPTkey', `bibtex-include-OPTcrossref', and `bibtex-user-optional-fields'.