Slides describing what CrossRef Cited-by Linking is and how CrossRef member publishers can participate. This presentation has been updated. See http://www.slideshare.net/CrossRef/crossref-citedby-linking-webinar for the latest information.

1. CrossRef Cited-by Linking Webinar
Carol Anne Meyer, Business Development & Marketing
November 10, 2010

2. Today’s Agenda
• What is CrossRef Cited-by Linking?
• How Does it Look? Some Examples
• Who is Involved?
• What Does it Cost?
• How Does it Work?
• What do Publishers Have to Do?
• Questions

3. What is CrossRef Cited-by Linking?
A way to answer the
question:
“Who’s Citing You?”• An optional reference
linking service of
CrossRef
• Additional navigation for
your publication web
site
• Demonstration to your
readers the relevance of
your content

4. What is the Difference Between
CrossRef Cited-by Linking and Forward
Linking?
Nothing!
• We changed the
name a few years
ago.
• You will still see
references in the
schema to
“Forward Linking”
or “FL”.

5. How Does it Look? Some
Examples

10. How Does it Look?
Some Examples

12. Who is Involved?
206
0
50
100
150
200
250
2007 2008 2009 2010 present
More than 200 CrossRef Members participate in Cited-by Linking

13. Advanced Research Journals Agricultural History Society* Air & Waste Management Association Akademiai Kiado* American Academy of
Pediatrics* American Academy of Periodontology* American Association for the Advancement of Science (AAAS) American Association of
Clinical Endocrinologists* American Chemical Society American Economic Association American Fisheries Society American Geophysical
Union (AGU) American Institute of Mathematical Sciences American Institute of Physics (AIP)* American Marketing Association* American
Meteorological Society* American Pharmacists' Association* American Physical Society* American Psychiatric Publishing American Society
for Clinical Investigation* American Society for Clinical Pathology* American Society for Microbiology American Society of Hematology
American Society of Neuroradiology* American Society of Plant Biologists American Society of Tropical Medicine and Hygiene Ammons
Scientific Annual Reviews Association for Career and Technical Education Research Association for Experiential Education Association of
Fire Ecology Baywood Publishing Co., Inc.* BC Decker Behaviormetric Society of Japan Bellwether Publishing* BioInfoBank
Institute BioOne* Botanic Garden and Botanical Museum Berlin-Dahlem Bulletin of the Atomic Scientists* CAIRN Cambridge University
Press* Canadian Academic Accounting Association* Canadian Meteorological and Oceanographic Society* Canadian Water Resources
Association Carden Jennings Publishing Co.* Center for Psychiatric Rehabilitation* Centers for Diease Control and Prevention CFA Institute*
China Science Publishing Group Co., Ltd. (Science Press) Chinese Journal of Mechanical Engineering CIG Media Group, LP* CLEO
Revues.org Co-Action Publishing CSIRO Publishing* Czech Geological Society Czech Geological Survey Czechoslovak TeX Users Group
(CSTUG) Dentaquest Department of Biology, Bogor Agricultural University Department of Biomedical Imaging, University of Malaya Dialogue
and Discourse Dietitians of Canada* Digital Science Press Duncker & Humblot GmbH Ecological Society of America* Edinburgh University
Press* EDP Sciences* Edward Elgar Publishing El Profesional de la Informacion - EPI SCP* Emerald* EMW Publishing English Literature in
Transition* Environmental Health Perspectives Equinox Publishing Ltd. European Journal of Chemistry European Optical Society Expert
Reviews Faculty of 1000 Future Medicine Ltd* Geological Society of America* Geophysical Center RAS George Washington University Green
Theory & Praxis: The Journal of Ecopedagogy Heldref Publications* Hindawi Publishing Corporation* Hogrefe & Huber* Image Processing On
Line Indian Academy of Neurosciences Indiana University Press Informa UK Limited Institute of Aeronautics and Space Institute of Electrical
& Electronics Engineers (IEEE) Institute of Hematology, Catholic University Institute of Organic Chemistry & Biochemistry Institute of Pure and
Applied Physics* Institutional Investor Journals International Association for Bridge and Structural Engineering (IABSE) International
Association of Fire Safety Science International Dose-Response Society* International Food Policy Research Institute (IFPRI) International
Reading Association* International Society for Gerontechnology International Union of Crystallography International Union of Pure and
Applied Chemistry (IUPAC) IODP IOP Publishing* IP Publishing Ltd. Is,Guc The Journal of Industrial Relations and Human Resources IUCN
J. Ross Publishing, Inc.* Japan Science and Technology Agency (JST)* Jaypee Brothers Medical Publishing Journal of Chinese Integrative
Medicine Press Journal of Human Sport and Exercise Journal of Neurosurgery Publishing Group (JNSPG)* Journal of Zhejiang University
SCIENCE Korea Basic Science Institute Korean Association of Medical Journal Editors (KAMJE)* Korean Institute of Science and Technology
Information (KISTI) Laser Pages Publishing LTD.* Libyan Journal of Medicine Society Linkoping University Electronic Press Lithuanian
Physical Society Logical Methods in Computer Science M.E. Sharpe Inc.* MAFTREE Mars Informatics Mary Ann Liebert* Mathematical
Science Publishers Medical Education Online Medknow Publications Men's Studies Press LLC.* MIT Press - Journals ML
CommunicationsCo., Ltd. Monash University ePress Morgan & Claypool Publishers LLC. National Institute of Informatics National Library of
Serbia Nature Publishing Group* New England Journal of Medicine Norwegian Society of Automatic Control* Nozomi Science OceanSide
Publications Oldenbourg Wissenschaft Oncology Nursing Society* Optical Society of America (OSA) Ovid Technologies (Wolters Kluwer
Health) Oxford University Press Pier Professional* Polska Akademia Nauk, Instytut Paleobiologii (Institute of Paleobiology, Polish Academy of
Sciences) Portland Press Ltd. Proceedings of the National Academy of Sciences* Professional Engineering Publishing Limited* Public Library
of Science* Research Foundation of the CFA Institute* Revista Universo Contabil Rockefeller University Press Royal College of Psychiatrists*
Royal Irish Academy Royal Society of Chemistry* S. Karger AG* Science Alert Science China Press., Co. Ltd. Science Publications Scientific
Research Centre (ZRC SAZU) Scientific Societies Smith School of Enterprise and the Environment Sociedade Portuguesa de Vida Selvagem
(SPVS)* Society for General Microbiology* Society of Petroleum Engineers (SPE) Springer SBM* Stefan cel Mare University of Suceava
Steklov Mathematical Institute Surgisphere Corporation The Company of Biologists The Genomic Standards Consortium The Journal of Solid
Waste Technology and Management The Policy Press The Royal Society* The Sedimentological Society of Japan Thomas Land* Thomas
Telford Publishing* Trans Tech Publications AG Transportation Research Board* Turk Ortopedi ve Travmatologi Dernegi Turpion Ltd.* United
Kingdom Serials Group (UKSG)* University of California Press* University of Chicago Press* University of Toronto Press Inc.* University of
Zagreb, Department of Mathematics Uspekhi Fizicheskikh Nauk (UFN) Journal Versita* Vilnius Gediminas Technical University Wageningen

14. Announcement
Next week we will announce a new
participant that will bring another 200
million references to CrossRef Cited-by
Linking.

15. Number of Articles with
References Deposited 8,245,136
Number of Cited-By Links 125,803,968
Number of DOIs with at
least one Cited-by link
16,648,062
% of DOIs with at least one
Cited-by Link
38%

16. What are the Rules?
• Participation is optional
• Members must deposit references from
their current material to retrieve Cited-
by links.
• Members (or Affiliates acting on their
behalf) can retrieve Cited-by links to
display in Members’ primary content.
• Cited-by Linking is not available for
secondary publishers.

17. How Does it Work?
cites
Pub A
Pub B
Scenario #1
Pub A deposits DOI #11
2 Pub B deposits DOI #2 with
references—one cites DOI #1
DOI #2 cites DOI #1
3
Pub A queries CrossRef
“Who cites DOI #1?”
Pub A

18. How Does it Work?
Scenario #2
Pub A
Pub A deposits DOI #11
4 Stored Query Alert:
DOI #2 cites DOI #1
Pub A
Nobody
2 Pub A queries CrossRef
“Who cites DOI #1?”Pub A
3
Pub B
Pub B deposits DOI #2 with
references—one cites DOI #1
cites

19. What Do Publishers
Need to Do?
1.Sign up at
http://www.crossref.org/06members/citedby_linking_signup.html
2.Deposit reference lists for each
document at CrossRef
3.Query CrossRef (using the document
DOI) for a list of all DOIs citing a
document.

20. Depositing
References
• No special permission is required to
make deposits
• Two methods:
a)XML
b)Simple Text Query (STQ)

21. a) XML Reference Deposit
Deposit as many citations as
the article has,
but the list replaces whatever
was deposited before
Can include just a
DOI
Not yet supported,
but send it if it’s all
you have
Used to line-up a return
match with a specific
query item

22. a) XML – Reference Deposit
<?xml version="1.0" encoding="UTF-8" ?>
<doi_citations_batch version="1.0.1"
xmlns="http://www.crossref.org/doi_citations_schema/3.0.3"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.crossref.org/doi_resources_schema/3.0.3
http://www.crossref.org/schema/deposit/crossref3.0.3.xsd">
<head>
<doi_batch_id>123456</doi_batch_id>
<depositor> … </depositor>
</head>
<body>
<doi_citations>
<doi>10.5555/small_md_0001</doi>
<citation_list>
<citation key="ref1">
<journal_title>Current Opinion in Oncology</journal_title>
<author>Chauncey</author>
<volume>13</volume>
<first_page>21</first_page>
<cYear>2001</cYear>
</citation>
<citation key="ref2">
<doi>10.5555/small_md_0001</doi>
</citation>
<citation key="ref3">
…
</citation>
</citation_list>
The DOI of the ‘citing’ article
A ‘cited’ tagged
reference
The DOI of a
‘cited’ reference

23. a) XML – Reference Deposit Results
<?xml version="1.0" encoding="UTF-8"?>
<doi_batch_diagnostic status="completed" sp="CR4">
<submission_id>334701547</submission_id>
<batch_id>04260730</batch_id>
<record_diagnostic status="Success">
<doi>10.5555/small_md_0001</doi>
<msg>Successfully updated</msg>
<citations_diagnostic>
<citation key="ref1" status="resolved_reference">
10.1016/0197-4580(90)90059-9
</citation>
<citation key="ref2" status="resolved_reference">10.5555/small_md_0001</citation>
<citation key="ref3" status="stored_query"></citation>
</citations_diagnostic>
</record_diagnostic>
<batch_data>
<record_count>1</record_count>
<success_count>1</success_count>
<warning_count>0</warning_count>
<failure_count>0</failure_count>
</batch_data>
</doi_batch_diagnostic>
The DOI of the ‘citing’ article

24. b) Simple Text Query
(STQ)
http://www.crossref.org/SimpleTextQuery/

25. b) STQ Reference Deposit

26. b) STQ Reference
Deposits
• The STQ form submits reference
deposits to the CR system
• You receive an e-mail with deposit
results

27. b) STQ Reference
Deposits
• The deposit will contain all the references STQ
can extract
• Parsed references that do not find a DOI
submitted as a stored metadata query
• References that do find a DOI submitted as a
DOI

28. b) STQ Reference
Deposits
• Each deposit will overwrite previous deposits
• Make each request a complete list of all
references
• Delete a reference by re-submitting deposit
without the reference

29. The DOI of the article containing
this reference
b) STQ Reference Deposit
Paste in references
Get DOIs
Submit “Forward Link”

30. 2. Querying for Cited-by
Links
• A CrossRef user account must have
permission to submit Cited-by Linking
queries
• The CrossRef user can only retrieve
Cited-by links to articles “owned” by that
user’s prefix

31. <?xml version = "1.0" encoding="UTF-8"?>
<query_batch version="2.0" xmlns =
"http://www.crossref.org/qschema/2.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.crossref.org/qschema/2.0
http://www.crossref.org/qschema/crossref_query_input2.0.xsd">
<head>
<email_address>ckoscher@crossref.org</email_address>
<doi_batch_id>fl_001</doi_batch_id>
</head>
<body>
<fl_query alert="false">
<doi>10.1103/PhysRev.100.935</doi>
</fl_query>
</body>
</query_batch>
set alert="true" if we want to receive future
emails when someone else cites this article
This is the DOI of the article that is
'cited’; We must be the owner to retrieve
any cited-by links
XML – Cited-by Query

32. XML --Cited-by Query Results
• The article being cited
• # of times the citing
item is itself cited
• Pub type: full_text
/abstract
• DOI type: journal
article / book /
dissertation / …
• The DOI of the citing
item

33. For More Help:
http://crossref.org/help/

34. Any Questions?

35. Technical Questions?
support.crossref.org or
support@crossref.org
Business Questions?
info@crossref.org