I use bibtex, natbib (author-year), and the apalike-style. Is there any option to replace authors with a dash in the references list at the end of the document if there are two publications by the same authors in one year, e.g., Authors (1999a) and Authors (1999b)
Best F.
The simple answer is no. The official APA style doesn't use that format, and so none of the conforming (apacite, biblatex-apa) or semi-conforming (apalike) APA styles will support it either. Assuming you're using apalike because you need a basic author-year style, you might want to switch to biblatex, where the option [style=authoryear] implements this style by default. There will be minor differences between the styles that can be fixed quite easily. For more information see:
We can steal the code for dashed names from IEEEtran.bst.
The heart of the "dahsed" feature is the function
FUNCTION {name.or.dash}
{ 's :=
oldname empty$
{ s 'oldname := s }
{ s oldname =
{ "---" }
{ s 'oldname := s }
if$
}
if$
}
A call to that function needs to be added after each function call that would print the primary name of an entry.
The necessary changes to turn apalike.bst into apalike-dashed.bst are
--- apalike.bst 2010-12-10 10:19:51.000000000 +0100
+++ apalike-dashed.bst 2019-01-28 17:29:20.877333300 +0100
@@ -1,3 +1,9 @@
+%% apalike-dashed.bst
+%% https://tex.stackexchange.com/q/472240/35864
+%% 2019-01-28 MW
+%% modification of apalike.bst with dashed functionality from IEEEtran.bst
+%% original header follows
+%% --------------------------------------------------------------------------
% BibTeX `apalike' bibliography style (version 0.99a, 8-Dec-10), adapted from
% the `alpha' style, version 0.99a; for BibTeX version 0.99a.
%
@@ -76,7 +82,7 @@
#3 'after.block :=
}
-STRINGS { s t }
+STRINGS { s t oldname }
FUNCTION {output.nonnull}
{ 's :=
@@ -479,9 +485,22 @@
" \cite{" * crossref * "}" *
}
+FUNCTION {name.or.dash}
+{ 's :=
+ oldname empty$
+ { s 'oldname := s }
+ { s oldname =
+ { "---" }
+ { s 'oldname := s }
+ if$
+ }
+ if$
+}
+
FUNCTION {article}
{ output.bibitem
format.authors "author" output.check
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -504,9 +523,11 @@
{ output.bibitem
author empty$
{ format.editors "author and editor" output.check
+ name.or.dash
editor format.key output
}
{ format.authors output.nonnull
+ name.or.dash
crossref missing$
{ "author and editor" editor either.or.check }
'skip$
@@ -537,6 +558,7 @@
FUNCTION {booklet}
{ output.bibitem
format.authors output
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -553,9 +575,11 @@
{ output.bibitem
author empty$
{ format.editors "author and editor" output.check
+ name.or.dash
editor format.key output
}
{ format.authors output.nonnull
+ name.or.dash
crossref missing$
{ "author and editor" editor either.or.check }
'skip$
@@ -588,6 +612,7 @@
FUNCTION {incollection}
{ output.bibitem
format.authors "author" output.check
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -615,6 +640,7 @@
FUNCTION {inproceedings}
{ output.bibitem
format.authors "author" output.check
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -644,6 +670,7 @@
FUNCTION {manual}
{ output.bibitem
format.authors output
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -660,6 +687,7 @@
FUNCTION {mastersthesis}
{ output.bibitem
format.authors "author" output.check
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -676,6 +704,7 @@
FUNCTION {misc}
{ output.bibitem
format.authors output
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -690,6 +719,7 @@
FUNCTION {phdthesis}
{ output.bibitem
format.authors "author" output.check
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -706,6 +736,7 @@
FUNCTION {proceedings}
{ output.bibitem
format.editors output
+ name.or.dash
editor format.key output % special for
output.year.check % apalike
new.block
@@ -724,6 +755,7 @@
FUNCTION {techreport}
{ output.bibitem
format.authors "author" output.check
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
@@ -740,6 +772,7 @@
FUNCTION {unpublished}
{ output.bibitem
format.authors "author" output.check
+ name.or.dash
author format.key output % special for
output.year.check % apalike
new.block
You can download apalike-dashed.bst from https://gist.github.com/moewew/fe37f610e010abb45ac14f4f318393f3
\documentclass[british]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{natbib}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@book{appleby:a,
author = {Humphrey Appleby},
title = {On the Importance of the Civil Service I},
year = {1980},
publisher = {Oxford University Press},
}
@book{appleby:b,
author = {Humphrey Appleby},
title = {On the Importance of the Civil Service II},
year = {1980},
publisher = {Clarendon Press},
}
\end{filecontents}
\begin{document}
\cite{appleby:a,appleby:b}
\bibliographystyle{apalike-dashed}
\bibliography{\jobname}
\end{document}
If you want the dash only for same author and same year, you could use
FUNCTION {name.or.dash}
{ 's :=
oldname empty$
{ s 'oldname :=
year 'oldyear :=
s }
{ s oldname =
year oldyear =
and
{ "---" }
{ s 'oldname :=
year 'oldyear :=
s }
if$
}
if$
}
instead of the definition above and you would have to declare the new variable oldyear
STRINGS { s t oldname oldyear }
I have never seen a style that only replaces authors from the same year, so I would not recommend doing that.
