On Tue, 17 Feb 2009, Xan wrote:

> Hi,
>
> I have a context mem2.tex document with:
>
> % Modules
> \usemodule[bib]
> \usemodule[bibltx]

You do not need bibltx if you are using a bib file.

> % Bibliography options
> \setupbibtex[database=mem2]
> \setuppublications [numbering=yes, sort=author, criterium=all]
> \setuppublications [alternative=ams]
> \setupheadtext[ca][pubs=Referències]
> \setuppublicationlist[authoretallimit=3]
> \setuppublicationlist[authoretaltext={\it\  et al.}]
> \setuppublicationlist[authoretaldisplay=1]

> and mem2.bib with:
>
> @Book{craft,
> author =     "Wayne C. Booth and Gregory G. Colomb and Joseph M. Williams",
> title =      "The Craft of Research",
> publisher =      "The University of Chicago Press",
> year =      2008,
> address =     "Chicago",
> edition =     "Third"
> }
>
> @unpublished{nagorko,
> author =     "Nagórko, Andrzej",
> title =      "{ I}ntroduction to Geometric Group Theory. {A}n introductory 
> talk about basic notions of Geometric Group Theory, with emphasis on 
> asymptotic invariants of groups",
> year =      2007,
> note =     "\from[nagorko-pdf] (accedida el febrer de 2009). Pareix que 
> forma part del seminari Probability and Ergodic Theory"
> }
>
> @Book{llibre-estil,
> editor = "{Govern de les Illes Balears}",
> title = "Llibre d'estil",
> publisher = "amadip.esment",
> year = 2006,
> pages = 614,
> note = "\from[govern-me] (accedida el febrer de 2009)"
>
> }
>
> @article{bridson,
> author = "Martin R. Bridson",
> title = "On the geometry of normal forms in discrete groups",
> journal = "Proceedings of the London Mathematical Society",
> year = "1993",
> volume = "67",
> pages = "595-616"
> }
>
> @manual{context-eni,
> title = "Con\TeX t, the manual",
> author = "Hans Hagen",
> year = "2001",
> month = "nov",
> organization = "Pragma-{ADE}",
> address = "Ridderstraat 27, 8061GH Hasselt. Països Baixos",
> note = "\from[context-manual-pdf], \from[contextgarden]"
> }
>
> @article{scm,
> title = "Com cal escriure en matemàtiques",
> author = "Paul R. Halmos",
> journal = "Butlletí de la Societat Catalana de Matemàtiques",
> volume = "21",
> number = "1",
> year = "2006",
> pages = "53-79"
> }
>
> @book{epstein,
> author = "Epstein, David B. A. and J. W. Cannon and D. F. Holt and S. V. F. 
> Levy and M. S. Paterson and W. P. Thurston",
> title = "Word processing in groups",
> publishers="Jones and Barlett Publishers",
> year= "1992"
> }
>
> @unpublished{article,
> author =     "Xavier Bordoy",
> title =      "{ U}na generalització de l'amplada d'una secció",
> year =      2009,
> note =     "Com a part de l'assignatura Tècniques de recerca i comunicació 
> científica"
> }
>
> When I run texec, it gives more lot of errors:
> warning: cite argument [reference] unknown on 139

My test file works fine here.

> I don't know why I do wrong.
>
> (I use \cite[nagorko] for example)

Try to create a complete minimal example, like

\starttext
In an interesting work \cite[nagorko] , \unknown
\placepublications
\stoptext

and tell what the exact error message is.

Aditya