[Tex/LaTex] Citing a certain type of reference using biblatex

biblatexsubdividing

I am in the process of updating my CV using LaTeX. In my CV, I have a list of publications, reports, etc., and I would like to use biblatex to manage these lists. Currently, all of my publications are maintained in a single .bib file, and ideally, I want it to stay this way.

Here is a simple example of how I would like my publications printed in my CV, where the largest labelnumber also equals the total number of references in a particular section:

Publications & Presentations
JOURNAL ARTICLES
[3] Author, A.;
Author, B. Journal Article 1 …
[2] Author, C.; Author, D.
Journal Article 2 …
[1] Author, E.; Author, F. Journal Article 3
…

REPORTS
[2] Author, G.; Author, H. Report 1 …
[1] Author,
I.; Author, J. Report 2 …

I can separate the reference types using \defbibfilter and \printbibliography[filter=...]. However, the only way I can get the references to print in the bibliography without a citation is with \nocite{*}. When I use \nocite{*}, all of the references in my .bib file are added to the .bbl file so that the labelnumbers are larger than the actual number of references for a particular type. For example, if there are 8 total references in the .bib file, with 4 articles and 4 reports, the bibliography prints as:

Publications & Presentations
JOURNAL ARTICLES
[8] Author,
Author …
[7] Author, Author …
[6] Author, Author …
[5] Author, Author …

REPORTS
[8] Author…
[7] Author…
[6] Author…
[5]
Author…

Is there any way to \nocite only certain types of references in the .bib file? For example, \nocite{type=article}? Or is there another biblatex command that will allow me to cite a particular entry type (article, report, book, etc.) rather than citing with a citation key?

Best Answer

A descending labelnumber in the bibliography is easy to obtain when entries for the subbibliographies are drawn from separate bib files. The problem is addressed in this post.

Like any citation command, \nocite makes bibliographic data available to biblatex. It can't be limited to entrytype a priori unless you pass a list of entry keys that are entrytype-specific. For example:

\nocite{<articlekey1>, <articlekey2>, <articlekey3>, ...}
...
\nocite{<reportkey1>, <reportkey2>, <reportkey3>, ...}

Descending labelnumber with one bib file can be obtained by making the item counters entrytype-specific. An easy way to perform counting and printing by entrytype is to modify \bibbycategory. The code below demonstrates this approach. It assumes that bibliographic data are made available only via \nocite.

Extensions to flexible category definitions and all citation commands are possible. For an illustration, see this previous answer.

\documentclass{article}
\usepackage[american]{babel}
\usepackage{csquotes}
\usepackage[style=numeric,sorting=ydnt,defernumbers=true]{biblatex}

\DeclareFieldFormat{labelnumber}{\mkbibdesc{#1}}

\makeatletter

% Print labelnumber as actual number, plus item total, minus one
\newrobustcmd{\mkbibdesc}[1]{%
  \number\numexpr\csuse{bbx@itemtotal}+1-#1\relax}

% Initialize category counters
\def\bbx@initcategory#1{\csnumgdef{bbx@count@#1}{0}}
\forlistloop{\bbx@initcategory}{\blx@categories}

% Increment category counters
\def\bbx@countcategory#1{%
  \ifentrytype{#1}
    {\csnumgdef{bbx@count@#1}{\csuse{bbx@count@#1}+1}%
     \addtocategory{#1}{\thefield{entrykey}}%
     \listbreak}
    {}}
\AtDataInput{\forlistloop{\bbx@countcategory}{\blx@categories}}

% Modify \bibbycategory to set item total
\patchcmd{\blx@bibcategory}
  {\blx@key@heading{#1}}
  {\blx@key@heading{#1}%
   \csnumdef{blx@labelnumber@\the\c@refsection}{0}%
   \csnumgdef{bbx@itemtotal}{\csuse{bbx@count@#1}}}
  {}{}

\makeatother

\DeclareBibliographyCategory{article}
\DeclareBibliographyCategory{report}
\DeclareBibliographyCategory{inproceedings}

\defbibheading{bibliography}{\section*{Publications and Presentations}}
\defbibheading{article}{\subsection*{Journal Articles}}
\defbibheading{report}{\subsection*{Reports}}
\defbibheading{inproceedings}{\subsection*{Presentations}}

\addbibresource{biblatex-examples.bib}

\begin{document}
\nocite{aksin,bertram,chiu,companion,padhye,angenendt,moraux}
\printbibheading
\bibbycategory
\end{document}

enter image description here

Related Solutions

[Tex/LaTex] Bibliography with subbibliographies with biblatex

The biblatex manual states that \finentry should used at the end of every entry. Applying this rule resolves the spacing issue. Another problem is that the keys in usera aren't being treated as separate items in enumerate. To fix this you can iterate on each key using \forcsvfield.

Entries in the same set are printed in a similar manner; the command \entry{<precode>}{<postcode>} executes <precode>, the bibliography driver and then <postcode> for each @set entry. So an alternative using entry sets isn't obvious.

I've updated the answer to resolve some additional spacing issues and allow you to specify the author of "own papers" in the tex file. The "cited by" entries and their print order still needs to be specified in the bib file, unfortunately.

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[american]{babel}
\usepackage{csquotes}
\usepackage[defernumbers=true]{biblatex}
\usepackage{filecontents}

% Variants of each could be added
\newcommand{\firstinit}{D.~E.}
\newcommand{\firstname}{Donald~E.}
\newcommand{\lastname}{Knuth}

\begin{filecontents}{\jobname.bib}
@Book{knuth:new,
  hyphenation = {american},
  sortyear = {1984-0},
  sorttitle = {Computers & Typesetting},
  author = {Knuth, Donald E.},
  title = {Computers \& Typesetting},
  volumes = {5},
  publisher = {Addison-Wesley},
  location = {Reading, Mass.},
  date = {1984/1986},
  usera = {companion,bertram,reese}}
\end{filecontents}
\addbibresource{\jobname.bib}
\bibliography{biblatex-examples}

\DeclareBibliographyCategory{byname}

\newcounter{bynamecount}
\setcounter{bynamecount}{0}

\DeclareIndexNameFormat{byname}{% Test could be refined
  \ifboolexpr{ test {\ifdefstring{\lastname}{#1}}
               and ( test {\ifdefstring{\firstname}{#3}}
                     or test {\ifdefstring{\firstinit}{#4}} ) }
    {\addtocategory{byname}{\thefield{entrykey}}%
     \addtocounter{bynamecount}{1}}
    {}}

\defbibcheck{byname}{%
  \indexnames[byname]{author}%
  \ifcategory{byname}
    {}
    {\skipentry}}

\renewbibmacro*{finentry}{%
  \finentry%
  \ifbibliography
    {\iffieldundef{usera}
      {}
      {\vskip\bibitemsep Cited by:
       \begin{enumerate}
         \forcsvfield{\itemcite}{usera}
       \end{enumerate}}}
    {}}
\newcommand*{\itemcite}[1]{\item \fullcite{#1}\finentry}

% Adjust horizontal spacing - necessary only when the initial 
% labelnumbers of entries in byname are large
\DeclareFieldFormat{labelnumberwidth}{\mkbibbrackets{#1}}
\newlength{\maxlabelnumberwidth}
\settowidth{\maxlabelnumberwidth}{\mkbibbrackets{\arabic{bynamecount}}}
\defbibenvironment{byname}
  {\list
     {\printfield[labelnumberwidth]{labelnumber}}
     {\setlength{\labelwidth}{\maxlabelnumberwidth}%
      \setlength{\leftmargin}{\maxlabelnumberwidth}%
      \setlength{\labelsep}{\biblabelsep}%
      \addtolength{\leftmargin}{\labelsep}%
      \setlength{\itemsep}{\bibitemsep}%
      \setlength{\parsep}{\bibparsep}}%
      \renewcommand*{\makelabel}[1]{\hss##1}}
  {\endlist}
  {\item}

\begin{document}
\nocite{*}
\printbibliography[check=byname,env=byname]
\end{document}

enter image description here

[Tex/LaTex] Suppress some URLs with biblatex nature.bbx class

This is difficult to handle within a style as it depends on how people store data in their database. (Different users will have different ideas about which types should and should not include a URL.) However, within a document it should be easy enough to handle using biblatex's abilities to access the data model. For example, something like

\AtEveryBibitem{%
  \ifentrytype{book}
    {\clearfield{url}}
    {}%
}

will clear the URL field for all books. Using a boolean expression, this can then be extended for multiple entry types

\AtEveryBibitem{%
  \ifboolexpr
    {
      test { \ifentrytype{book} }
      or
      test { \ifentrytype{inbook} }
      or
      test { \ifentrytype{inproceedings} }
    }
    {\clearfield{url}}
    {}%
}

Best Answer

Related Solutions

[Tex/LaTex] Bibliography with subbibliographies with biblatex

[Tex/LaTex] Suppress *some* URLs with biblatex nature.bbx class

Related Question

[Tex/LaTex] Suppress some URLs with biblatex nature.bbx class