apa like bibliography: entries not indexed correctly

[Andreas Mang <mang@imt.uni-luebeck.de>]

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Dear all,

I am experiencing problems with the bibliography. My bibliographystyle is apa like. In the minimal example given below the maybe year is not set up correctly. That is I would expect to have

(Firstauthor et al., 2012a,2011,2012b)

but I get

(Firstauthor et al., 2012,2011,2012). 

It took me some time to reproduce this error. My description of the error is probably quite difficult to follow. I hope the example is more intuitive:

The reason for this problem to occur is that the entries in the bbl file are probably processed according to the alphabetic order of the last name of the authors. If one refers to an author publishing several articles in a single year (in my example 2012) and there is an additional publication that is published in another year (in my example 2011), the ordering is essentially determined by the first letter of the last name of the second author (if it was a different second author, otherwise third author and so on). 

If the letter of the second author in the publication published in the year in which there was only a single publication (in my example 2011) happens to be inbetween the letter of the second author on the two publications published in the year in which there have been two publications (in my example the publications in 2012), the publication (in my example 2011) will appear inbetween those that appeared in the same year (in my example 2012). This results in the maybeyear to be screwed up.


The listing will be

Firstauthor et al., 2012

Firstauthor et al., 2011

Firstauthor et al. 2012


instead of

Firstauthor et al., 2012a

Firstauthor et al., 2011

Firstauthor et al., 2012b

Cheers,
Andreas


2012.11.06 09:56 MKIV  fmt: 2012.11.7  int: english/english

\setuppublications[
	alternative=apa-de,
	sorttype=bbl
]
\setuppublicationlist[]

%bibtex support
\setupbibtex[database={references-example},sort=author]
%\setupbibtex[database={references},sort=author]


%%%%%%%%%%%% MINIMAL EXAMPLE %%%%%%%%%%%% 
\starttext
\cite[Firstauthor:2012b,Firstauthor:2011a,Firstauthor:2012a]

\placepublications[criterium=text]

\stoptext
%%%%%%%%%%%% MINIMAL EXAMPLE %%%%%%%%%%%% 

[-- Attachment #2: references-example.bib --]
[-- Type: application/octet-stream, Size: 1169 bytes --]

%% This BibTeX bibliography file was created using BibDesk.
%% http://bibdesk.sourceforge.net/


%% Created for Andreas Mang at 2012-11-07 10:41:33 +0100 


%% Saved with string encoding Unicode (UTF-8) 



@article{Firstauthor:2011a,
	Author = {A. Firstauthor and A. BCoAuthor2011 and A. Lastauthor},
	Date-Added = {2012-11-07 09:19:22 +0000},
	Date-Modified = {2012-11-07 09:40:48 +0000},
	Journal = {Some Journal},
	Number = {X},
	Pages = {xx--xx},
	Title = {Some Title},
	Volume = {X},
	Year = {2011}}

@article{Firstauthor:2012b,
	Author = {A. Firstauthor and A. CCoAuthor2012 and A. Lastauthor},
	Date-Added = {2012-10-01 13:01:38 +0000},
	Date-Modified = {2012-11-07 09:41:28 +0000},
	Journal = {Some Theoretical Journal},
	Number = {X},
	Pages = {xx--xx},
	Title = {Some Title},
	Volume = {X},
	Year = {2012}}

@article{Firstauthor:2012a,
	Author = {A. Firstauthor and A. ACoAuthor2012 and A. Lastauthor},
	Date-Added = {2012-10-01 13:01:02 +0000},
	Date-Modified = {2012-11-07 09:41:33 +0000},
	Journal = {Some Applied Journal},
	Number = {X},
	Pages = {xx--xx},
	Title = {Some Title},
	Volume = {X},
	Year = {2012}}

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