linking to articles
DOI linking
All articles in Crystallography
Journals Online have an associated
digital object identifier (DOI). This is a unique code that can
be used to construct a persistent link to the authoritative
online version of an article. This persistent linking is enabled
by the CrossRef
system.
Knowing the DOI of an article allows you to construct a link as
follows:
CrossRef base URL + DOI
For example, consider the table of contents found at http://journals.iucr.org/d/issues/2003/01/00/issconts.html.
The first research article in this issue has the following
bibliographic details:
Acta Cryst. (2003). D59, 16-22 [
doi:10.1107/S0907444902017523 ]
Given the CrossRef base URL "http://dx.doi.org/" and the article
DOI "10.1107/S0907444902017523", the DOI
link to access the article would be:
OpenURL
Crystallography Journals Online also provides links to its articles
via OpenURL syntax. The
syntax is as follows:
Base URL + OpenURL
parameters
The base URL for OpenURL linking is "http://scripts.iucr.org/cgi-bin/openurl?genre=article&..."
and the currently supported OpenURL parameters are:
- issn
- volume
- issue
- part
- spage
- aulast
- atitle
Bold items are required in all links, while issue is only required if the
spage parameter is not supplied.
If we consider the same example article
Acta Cryst. (2003). D59, 16-22 [
doi:10.1107/S0907444902017523]
the journal is Acta
Crystallographica Section D, which has an issn of "0907-4449", the
volume is "59"
and the start page number (spage) is
"16", from which the following OpenURL
link can be constructed:
If the start page number is not given, an article can also be
requested by pattern matching on words in the the article title
(atitle) and/or on the last name of the
first author (aulast). In such cases, the
issue is also
required. For example,
finds the same article as does
The second of the above links returns two articles that match the
link showing that pattern matching may produce ambiguous results.
However, pattern matching can be useful is resolving
ambiguities that occur where two articles have the same start
page number (spage). For example,
selects four articles on the same page, whereas
allows one specific article to be selected.