# How to get combined authors citations with biblatex apa package?

I am using the biblatex-apa package. However, I would like to get citation with combined authors, like

Doe (2017, 2018)

rather than

Doe (2017) and Doe (2018).

I checked the biblatex-apa documentation but couldn't find it.

• Works for me: \textcite{knuth:ct:a,knuth:ct:e}. Please show us a short example document that reproduces the issue. Make sure that the example document contains all information necessary to reproduce the issue and can be run in an empty folder with only the files provided in the question (in particular you must include two example .bib entries or use biblatex-examples.bib). See tex.meta.stackexchange.com/q/228/35864 and tex.meta.stackexchange.com/q/4407/35864 – moewe Sep 25 '18 at 7:23
• @moewe Thanks. Good to know that it should work. I haven't figured out why it does not in my document and haven't managed to create a short example either. – Daniel Sep 25 '18 at 7:48
• Does it work if you cite \textcite{knuth:ct:a,knuth:ct:e} from \addbibresource{biblatex-examples.bib} (that file is installed on your system and will be found automatically) in your document? Do things work if you start from a very small document? There are two ways to produce an MWE: Start with an empty file and add enough code from the problematic document until the error occurs or start from (a copy of) the entire document and remove stuff until the problem occurs. – moewe Sep 25 '18 at 7:51
• @moewe Yes, it works with a new document. However, the one I am working with actually is several different documents but I'll try to cut it down. – Daniel Sep 25 '18 at 7:53
• Tracked at lyx.org/trac/ticket/11308 – moewe Sep 25 '18 at 8:50

Compact citations work fine if all entries are given within the same pair of curly braces of a \cite command

\textcite{knuth:ct:a,knuth:ct:e}


As it turns out LyX (not entirely unreasonably) would turn this citation into a multicite command in certain situations (e.g. upon reordering of the citations)

\textcites{knuth:ct:a}{knuth:ct:e}


See https://www.lyx.org/trac/ticket/11308. Note that it absolutely makes sense to use a multi-cite command if there are post- and pre-notes involved, since those have to stick to the respective entries. The behaviour for empty pre- and postnote is going to be changed, though.

The problem then is that biblatex-apa does not give compact citations across several multi-cite braces. Compare

\documentclass[british]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}

\usepackage[style=apa, backend=biber]{biblatex}


biblatex-apa can be convinced to give slightly nicer output in some cases as explained in How to cite same author but different articles in a compact way? (biblatex, biber, APA).