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I am struggling with unicode chars in bibtex (Debian). I have the following entry in my .bib file:

author = {Tomas Björk},
title = {Arbitrage Theory in Continuous Time},
publishe = {Oxford University Press},
year = {2009}

and it works fine for plain bibliography style, but fails horribly for the more alphanumeric styles (e.g. apa, alpha) - the error reported is:

! Undefined control sequence.
<argument> \protect \astroncite 
l.3 ...rotect\astroncite{Björk}{2009}]{bjork2009}

any ideas how to get it working?

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up vote 7 down vote accepted

Bibtex is not really unicode aware. In order to use extended characters, you need to use the standard Tex replacements.

You might however want to use biblatex for a better management of bibliographic styles; and maybe have a look at biber, which aims to become a unicode aware Bibtex replacement.

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