Hello,

I am fairly new to the ConTeXt community and I am trying to sort bibliographical references for my thesis. I need to be able to set the sorting order of the bibliographical references by Czech alphabet (e.g., C,Č,D,....Ch,...etc.). English sorting puts Ch before C or Č, but in Czech it needs to be after D. Any ideas?

Here is the minimal example

\mainlanguage[cz]

\usebtxdataset[bibliotest.bib]

\usebtxdefinitions[apa]

\unprotect %here I substitute the annoying ampersand with czech a

\def\textampersand{a}

\protect

 \setupbtx

 [apa:cite]

 [left=,

  right=,

separator:2={\btxsemicolon}, % :0 and :1 - between items of a list

separator:3={\btxsemicolon},

separator:4={\btxsemicolon},

separator:names:2={\btxcomma},

separator:names:3={\btxcomma},

separator:names:4={\btxcomma},   

etaldisplay=3,

etallimit=3

]

\starttext

\cite[righttext={{123},{116-156}}][Danton2004, Cicikova2011].

\cite[Cicikova2011]

\cite[Chichikova1978]

\startchapter[title=Bibliografie]

\placelistofpublications

\stopchapter

\stoptext

and the database bibliotest.bib

@book{Danton2004,

address = {Oxford},

author = {Danton, Gocha R. and {De Angelis}, Franco},

publisher = {Oxford University School of Archaeology},

title = {{The archaeology of Greek colonisation: essays dedicated to Sir John Boardman}},

year = {2004}

 }

@article{Cicikova2011,

address = {Kazanlak},

annote = {PDF},

author = {{\v{C}}i{\v{c}}ikova, M},

pages = {116--121},

journal = {{Varia Thracica}},

title = {{Article Title}},

year = {2011}

}

@book{Chichikova1978,

address = {Oxford},

author = {Chichikova, Maria and Dimitrov, Dimitur P. and Alexieva, Marguerite and Author, Name},

isbn = {0-86054-003-0},

keywords = {Seuthopolis,Thracians},

language = {eng},

publisher = {BAR Supplementary Series 38},

title = {{The Thracian city of Seuthopolis}},

year = {1978}

}

Thanks in advance,

Petra