I guess this could be related to the dialect of the bibtex file. If it is
BibTeX, then org-cite-basic--parse-bibtex finds conference and masterthesis
for me, and probably anything defined in bibtex-entry-alist. Things that
are not in that list would probably be ignored. This is outsourced to
bibtex.el.

#+BEGIN_SRC emacs-lisp
(mapcar 'car bibtex-entry-alist)
#+END_SRC

#+RESULTS:
| Article | InProceedings | Conference | InCollection | InBook |
Proceedings | Book | Booklet | PhdThesis | MastersThesis | TechReport |
Manual | Unpublished | Misc |

if the file has a biblatex dialect then these are the entries that can be
parsed.

#+BEGIN_SRC emacs-lisp
(mapcar 'car bibtex-biblatex-entry-alist)
#+END_SRC

#+RESULTS:
| Article | Book | MVBook | InBook | BookInBook | SuppBook | Booklet |
Collection | MVCollection | InCollection | SuppCollection | Dataset |
Manual | Misc | Online | Patent | Periodical | SuppPeriodical | Proceedings
| MVProceedings | InProceedings | Reference | MVReference | InReference |
Report | Software | Thesis | Unpublished |

If you open your bibtex file and type C-h v bibtex-dialect, or check that
in the Entry-Types menu you can see what the dialect is.

John

-----------------------------------
Professor John Kitchin (he/him/his)
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu



On Fri, Apr 8, 2022 at 7:10 AM Eric S Fraga <e.fraga@ucl.ac.uk> wrote:

> On Friday,  8 Apr 2022 at 00:44, Olaf Trygve Berglihn wrote:
> > When using the @techreport, @mastersthesis, @phdthesis, and @conference
> org-cite
> > fails to find the entry.  Export to some formats fails due to this.
>
> I have tried this and it is true that org cite fails but only for
> mastersthesis and conference, in my case, with org up to date as of a
> few minutes ago.
>
> According to https://www.bibtex.com/e/entry-types/, conference as a type
> was only included for compatibility with Scribe (as either proceedings
> or inproceedings do the job) but the others are definitely in the list
> and should be supported, I guess.
>
> --
> : Eric S Fraga, with org release_9.5.2-426-gf6813d in Emacs 29.0.50
>
>