SFX is a resource linking service offered by the Library that links from an article citation in a database to the online full text of the article, where available, from various sources and to other helpful and related services.
It therefore saves your time in finding out where the online or printed version of the article you want is located after you have found its citation in a database.
All current CityU staff and students and Alumni e-Resources Service Subscribers can use the SFX service.
Many of the major Library-subscribed databases are SFX-enabled. Start a literature search in any SFX-enabled database appropriate for your subject. You will find the SFX button/hyperlink adjacent to the individual citations at the search results screen or at the full record screen for a citation. Simply click on the SFX button/hyperlink. A menu of available options for that particular article/book record will be displayed in a new window.
When you click on the SFX button/hyperlink in a SFX-enabled database, the database provider sends an OpenURL to SFX that contains information (metadata) about the item, e.g. author, article title, publication title, publication date, volume, issue, page numbers, etc. in a structured format. SFX then uses these metadata to determine what service options to show in the SFX menu.
The possible reasons are:
Many, though not all, of the Library e-resources are SFX-enabled. In the alphabetical and subject lists of databases, SFX-enabled resources are marked with an SFX logo 
.
Examples of major e-resources which are SFX-enabled include:
SFX linking service is context-sensitive (i.e. depending on the metadata available in the incoming OpenURL and on the Library's subscription). We try not to offer you service options that are not available. Hence, service options available in the SFX menu will vary from citation to citation. When available, the SFX menu will show one or more of the following options:
Yes. You can use SFX from off campus either via CityLink Plus or other ISPs, just as how you access the other Library e-resources that allow remote access. Detailed information on remote access to Library electronic resources is available at http://www.cityu.edu.hk/lib/instruct/guides/eresguid/remote.htm.
The possible reasons for the absence of a full-text link in the SFX menu include:
Click the link "Check holdings in CityU Library Catalogue" to see if the Library holds a print version or if a link to the publication is available in the catalogue record. (See also the next question.)
Not always. A second search in the Library Catalogue for the title of the book or the journal might find it.
If you find that the Library does not hold the item you want in any format, you may request for InterLibrary Loan Services if you are eligible for the service.
Sometimes a journal is available in more than one resource that the Library has subscribed to, so SFX links to all of them. That way, if one of the sources happens to be temporarily unavailable, you can access the full text from another.
The presence of a full-text link in the SFX menu means full text is available and SFX will get you as close as possible to the article you want. However, direct linking to the article is not always possible as some resource providers do not provide linking syntax that can link directly to the article. In such cases, SFX drops you off at the table of contents or the homepage of the journal. You then need to navigate a bit to get to the article you want. Remember the citation information of the desired article is available in the header of the SFX menu under "SFX services for this record".
There are several possible reasons:
You may use the "report problems with SFX links to the Library" link in the SFX menu to let us know about the problems you encounter.
The Library's subscription to these and many other databases allow only a limited number of simultaneous users. If you forget to log out, a login will be tied up until the session times out. Therefore, out of courtesy to other users, please log out of a database after use to make it immediately available to others.
The following tools on the Library web site are powered by SFX:
Please send your questions via the "report problems with SFX links to the Library" link in the SFX menu or email your questions to lbinf@cityu.edu.hk.
