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With biblatex, alphabetic style, I have

<author>. <title>

But I want to have a colon ":" instead of the period "." after the author:

<author>: <title>

What do I have to change?

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I refurbished your question a bit, hope you don't mind. – doncherry Jan 7 '12 at 15:20
up vote 19 down vote accepted

Put the following in your preamble after having loaded biblatex


(This is better than \renewcommand{\labelnamepunct}{:\addspace}, as remarked by domwass.)

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works fine, thank you! – Johannes L Sep 19 '11 at 11:19
It would be better to use \renewcommand{\labelnamepunct}{\addcolon\space}, because then unintended whitespace before the colon will be deleted. – domwass Sep 19 '11 at 12:09
@domwass Right; all those \add... commands in biblatex are confusing. – egreg Sep 19 '11 at 12:13
This works with verbose style as well. Question: The \labelnamepunct will only be executed after the author entry and nowhere else? – doncherry Jan 7 '12 at 15:23
@doncherry biblatex defines many "punct" commands, so I guess this is specialized for that purpose. – egreg Jan 7 '12 at 15:47

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