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}}
{}%
}
If you use biber, this might be best handled with the related entries feature supported by biblatex 2.0+.
The preamble below defines a new type of related entry: prelim. This key specifies the localization string, formatting directive and bibliography macro used to set the entries given in the related field.
\documentclass{article}
\usepackage[american]{babel}
\usepackage{csquotes}
\usepackage[backend=biber]{biblatex}
\usepackage[colorlinks]{hyperref}
\renewcommand*{\relatedpunct}{\addcolon\space}
\renewcommand*{\relateddelim}{\addcomma\space}
\newbibmacro*{related:prelim}[1]{%
\renewcommand*{\newunitpunct}{\addcomma\space}%
\entrydata{#1}{\usebibmacro{doi+eprint+url}}}
\NewBibliographyString{prelim,prelims}
\DefineBibliographyStrings{american}{%
prelim = {Preliminary version},
prelims = {Preliminary versions}}
\begin{filecontents}{\jobname.bib}
@article{v008a021,
author = {Roy Kasher and Julia Kempe},
title = {Two-Source Extractors Secure Against Quantum Adversaries},
year = {2012},
pages = {461-486},
doi = {10.4086/toc.2012.v008a021},
journal = {Theory of Computing},
volume = {8},
number = {1},
related = {kasher/arxiv,kasher/approx},
relatedtype = {prelim}}
@online{kasher/arxiv,
author = {Kasher, Roy and Kempe, Julia},
title = {Two-Source Extractors Secure Against Quantum Adversaries},
eprinttype = {arxiv},
eprintclass = {quant-ph},
eprint = {1005.0512},
month = may,
year = {2010}}
@inproceedings{kasher/approx,
author = {Kasher, Roy and Kempe, Julia},
title = {Two-source extractors secure against quantum adversaries},
booktitle = {Proceedings of the 13th international conference on Approximation,
and the 14th International conference on Randomization, and combinatorial
optimization: algorithms and techniques},
series = {APPROX/RANDOM'10},
year = {2010},
venue = {Barcelona, Spain},
pages = {656--669},
url = {http://dl.acm.org/citation.cfm?id=1886521.1886572},
publisher = {Springer-Verlag},
location = {Berlin, Heidelberg}}
\end{filecontents}
\addbibresource{\jobname.bib}
\begin{document}
\cite{v008a021}
\printbibliography
\end{document}
Here biber accesses data for every entry indicated in the related field. Each related entry is assigned a hash key and is marked dataonly. This avoids extraneous entries in the bibliography. It also allows you to cite related works directly and create "circular" relationships between entries.
Since you probably won't be citing preliminary works you could get by without biber, using some additional code to access related entry data and a few more LaTeX/BibTeX runs.
\documentclass{article}
\usepackage[american]{babel}
\usepackage{csquotes}
\usepackage[backend=bibtex,defernumbers]{biblatex}
\usepackage[colorlinks]{hyperref}
\DeclareBibliographyCategory{related}
\newrobustcmd*{\getrelated}[1]{%
\nocite{#1}\addtocategory{related}{#1}}
\AtDataInput{%
\iffieldundef{usera}{}{\forcsvfield{\getrelated}{usera}}}
\AtEveryBibitem{%
\iffieldundef{usera}{}{%
\edef\bbxusera{\thefield{usera}}%
\edef\bbxuserb{\thefield{userb}}%
\restorefield{related}{\bbxusera}%
\restorefield{relatedtype}{\bbxuserb}}}
\renewcommand*{\relatedpunct}{\addcolon\space}
\renewcommand*{\relateddelim}{\addcomma\space}
\newbibmacro*{related:prelim}[1]{%
\renewcommand*{\newunitpunct}{\addcomma\space}%
\entrydata{#1}{\usebibmacro{doi+eprint+url}}}
\NewBibliographyString{prelim,prelims}
\DefineBibliographyStrings{american}{%
prelim = {Preliminary version},
prelims = {Preliminary versions}}
\begin{filecontents}{\jobname.bib}
@article{v008a021,
author = {Roy Kasher and Julia Kempe},
title = {Two-Source Extractors Secure Against Quantum Adversaries},
year = {2012},
pages = {461-486},
doi = {10.4086/toc.2012.v008a021},
journal = {Theory of Computing},
volume = {8},
number = {1},
usera = {kasher/arxiv,kasher/approx},
userb = {prelim}}
@online{kasher/arxiv,
author = {Kasher, Roy and Kempe, Julia},
title = {Two-Source Extractors Secure Against Quantum Adversaries},
eprinttype = {arxiv},
eprintclass = {quant-ph},
eprint = {1005.0512},
month = may,
year = {2010}}
@inproceedings{kasher/approx,
author = {Kasher, Roy and Kempe, Julia},
title = {Two-source extractors secure against quantum adversaries},
booktitle = {Proceedings of the 13th international conference on Approximation,
and the 14th International conference on Randomization, and combinatorial
optimization: algorithms and techniques},
series = {APPROX/RANDOM'10},
year = {2010},
venue = {Barcelona, Spain},
pages = {656--669},
url = {http://dl.acm.org/citation.cfm?id=1886521.1886572},
publisher = {Springer-Verlag},
address = {Berlin, Heidelberg}}
\end{filecontents}
\addbibresource{\jobname.bib}
\begin{document}
\cite{v008a021}
\printbibliography[notcategory=related]
\end{document}
Best Answer