Years are exported to latex as full citation about org-ref

[jkitchin]

You should probably provide more detail on how you are exporting. If you are using C-c e l L then citet:&merker-2022-machin-learn should export to \citet{merker-2022-machin-learn}. If LaTeX is your goal, this is the preferred way to export.

If you use C-c e r l instead then you will get a full citeprocitem via CSL. There is not a one to one mapping with CSL to the LaTeX cite commands, or feature parity with this option.

[wardfont]

I am specifically exporting to pdf with C-c e r p. Is there a way to configure org-ref to the desired behaviour?

[jkitchin]

C-c C-e l o should work out of the box to get a pdf via LaTeX.

[wardfont]

C-c C-e l o gives me undefined citations, as the bibliography file reference is not properly exported to latex (bibliography:bibliography.bib in the org file gets exported to /bibliography{bibliography} in the tex file).

How would I go modifying the behaviour of citeprocitem to properly show year when using citet:?

[jkitchin]

I assume you mean \bibliography{bibliography}. That is probably correct. if you have undefined citations, it could mean you are missing some entries that are in another file, or there is some issue with the entries in the bib file. you should share a small example that shows the problem.

[wardfont]

Using the following in my org file:

#+title: Cite

[[citet:&zimmermannClimaticExtremesImprove2009]]

• References

bibliographystyle:chicago
bibliography:bibliography.bib

I get the following .tex output when exporting using C-c e r p:

% Created 2022-11-30 Wed 16:37
% Intended LaTeX compiler: pdflatex
\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{wrapfig}
\usepackage{rotating}
\usepackage[normalem]{ulem}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{capt-of}
\usepackage{hyperref}
\makeatletter
\newcommand{\citeprocitem}[2]{\hyper@linkstart{cite}{citeproc_bib_item_#1}#2\hyper@linkend}
\makeatother
\author{Ward Fonteyn}
\date{\today}
\title{Cite}
\hypersetup{
pdfauthor={Ward Fonteyn},
pdftitle={Cite},
pdfkeywords={},
pdfsubject={},
pdfcreator={Emacs 28.1 (Org mode 9.6)},
pdflang={English}}
\begin{document}

\maketitle
\tableofcontents

Zimmermann et al. \citeprocitem{1}{Zimmermann et al. 2009}

\section{References}
\label{sec:org72b5651}

\bibliographystyle{chicago}

\hypertarget{citeproc_bib_item_1}{Zimmermann, Niklaus E., Nigel G. Yoccoz, Thomas C. Edwards, Eliane S. Meier, Wilfried Thuiller, Antoine Guisan, Dirk R. Schmatz, and Peter B. Pearman. 2009. “Climatic Extremes Improve Predictions of Spatial Patterns of Tree Species.” \textit{Proceedings of the National Academy of Sciences} 106 (supplement\_2). Proceedings of the National Academy of Sciences: 19723–28. doi:\href{https://doi.org/10.1073/pnas.0901643106}{10.1073/pnas.0901643106}.}
\end{document}

and get this in my pdf:

instead of the expected "Zimmermann et al. (2009)"

[jkitchin]

can you share the bib file? or at least the entry in question? It does not make sense to go through CSL for export to PDF via Latex. It is certainly better to let latex do the work.

[wardfont]

This is the bib file contents:

@Article{zimmermannClimaticExtremesImprove2009,
title = {Climatic Extremes Improve Predictions of Spatial Patterns of Tree Species},
author = {Zimmermann, Niklaus E. and Yoccoz, Nigel G. and Edwards, Thomas C. and Meier, Eliane S. and Thuiller, Wilfried and Guisan, Antoine and Schmatz, Dirk R. and Pearman, Peter B.},
year = {2009},
month = nov,
journal = {Proceedings of the National Academy of Sciences},
volume = {106},
number = {supplement_2},
pages = {19723--19728},
publisher = {{Proceedings of the National Academy of Sciences}},
doi = {10.1073/pnas.0901643106},
file = {/home/wardfont/bibliography/bibtex-pdfs/zimmermannClimaticExtremesImprove2009.pdf}
}

@Article is not capitalised in the file, but here is formatted that way.

I appreciate your time helping me.

[jkitchin]

Maybe the problem is citet is not a native cite command in latex, and you have to use the natbib package to get it defined.
You need to add the natbib package like this:

Then for this:

with (setq org-latex-pdf-process (list "latexmk -shell-escape -bibtex -f -pdf %f"))

#+title: Cite
#+latex_header: \usepackage{natbib}
#+options: toc:nil

See [[citet:&zimmermannClimaticExtremesImprove2009]] 

bibliographystyle:chicago
bibliography:bibliography.bib 

[wardfont]

Adding the natbib package does fix the export using "C-c e l o". The same issue is still present when using "C-c e l r" however.

I will be using the former option from now on. Thank you for your time and this wonderful package!

[wardfont]

The same issue is also present when exporting to html, odt or word format using "C-c e r"

[jkitchin]

The issue is there are two exporters: latex and CSL, and they do not support all options of each other. Latex is the best imo for org-ref, as I wrote it to provide near complete support of latex for citation rendering.

CSL is a different approach to citation rendering, and it does not use the latex citation commands. That means you can only ever get close to what latex does, and somethings are not even possible right now when using csl. Adding natbib has no effect on CSL export because it does not use any of the latex capabilities, you have to rely on an incomplete mapping of CSL to the latex cite commands.

anyway, the short version is for latex, use the latex exporter commands and you will get what you want. For everything else, use the org-ref CSL exporter, but stick to simpler cite commands.