citingnatbib
I am trying to use natbib for citation. Whenever I am trying to use more than two authors for citation instead of using "et. al. " , citation becomes number format instead of author year citation.
I am using it as
\usepackage[longnamesfirst, authoryear]{natbib}
and
\bibliographystyle{plainnat}
A well-known bibliography style that generates authoryear-style citation call-outs and uses & as the conjunction if the bib entry has exactly two authors (or editors) is agsm. This bibliography style is part of the harvard citation management package, but it's compatible with the natbib package as well.
To change the truncation criterion for using "et al." in a citation callout, from a piece having three or more authors to it having four or more authors, it is necessary to modify the function format.lab.names in the bibliography style file.
I suggest you do the following:
Make a copy of the version of jf.bst you've been working with so far. Name the copy, say, jf3.bst -- "3" to indicate non-truncation if a piece has exactly three authors. (Don't modify jf.bst directly.)
Open the file jf3.bst in a text editor and find the function format.lab.names. It should start around line 1160 and span 18 lines.
Delete the entire function (i.e., all 18 lines) and insert the following chunk of code (46 lines total) in its place:
FUNCTION {format.lab.names}
{'s :=
"" 't :=
#1 'nameptr :=
s num.names$ 'numnames :=
numnames 'namesleft :=
{ namesleft #0 > }
{ s nameptr
"{vv~}{ll}" format.name$
't :=
nameptr #1 >
{
nameptr #2 =
numnames #3 > and
{ "others" 't :=
#1 'namesleft := }
'skip$
if$
namesleft #1 >
{ ", " * t * }
{
s nameptr "{ll}" format.name$ duplicate$ "others" =
{ 't := }
{ pop$ }
if$
t "others" =
{ " et~al." * }
{
numnames #2 >
{ "," * }
'skip$
if$
bbl.and
space.word * t *
}
if$
}
if$
}
't
if$
nameptr #1 + 'nameptr :=
namesleft #1 - 'namesleft :=
}
while$
}
Save the file jf3.bst either in the directory where your main tex file is located or in a directory that's searched by BibTeX. If you choose the second option, be sure to update the filename database of your TeX distribution.
Start using the new bibliography style by using the instruction \bibliographystyle{jf3} instead of \bibliographystyle{jf}. After you first switch bibliography styles, be sure to run LaTeX, BibTeX, and LaTeX twice more to fully propagate all changes.
Happy BibTeXing!
Addendum: Here are the citation callouts produced with \citet running the MWE below, first the jf and then with jf3. (One entry has three authors and the other has four.)
With jf, both citation callouts truncate to Andersen et al.:
With jf3, only one citaton callout -- for the piece with four authors -- is truncated:
\documentclass{article}
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
@article{abd:2007,
author = "Torben G. Andersen and Tim Bollerslev and Francis X. Diebold",
title = "Roughing it up: {Including} jump components in the
measurement, modeling and forecasting of return volatility",
journal = "Review of Economics and Statistics",
year = 2007,
volume = 89,
number = 4,
month = "November",
pages = "701--720",
}
@article{abde:2001,
author = "Torben G. Andersen and Tim Bollerslev and Francis X. Diebold
and Heiko Ebens",
title = "The distribution of realized stock return volatility",
journal = "Journal of Financial Economics",
year = 2001,
volume = 61,
number = 1,
month = "July",
pages = "43--76",
}
\end{filecontents*}
\usepackage[round,authoryear,comma]{natbib}
\bibliographystyle{jf} % or: jf3
\begin{document}
\citet{abd:2007}; \citet{abde:2001}
\bibliography{\jobname}
\end{document}
Best Answer
The
plainnatstyle should work as you expect. Here's an example: