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About oaDOI

This link to an open access version of an article comes through, which indexes millions of articles and delivers open-access full-text versions over an open API. The MIT Libraries are excited to offer this new path to access scholarly content. oaDOI is a contribution to an open access infrastructure that, by taking readers to versions of articles that are not behind paywalls, supports MIT’s aim of democratizing access to information. 

If you have any questions or comments on this service, please send them to

SNL Energy: Use restrictions

Please note:

Members of the MIT community may use SNL Energy data for scholarly, research, and educational purposes. For these purposes, limited, insubstantial portions of data may be excerpted and distributed to third parties, but in no event may you distribute data from this source in a quantity or in a manner that would serve as a substitute for purchase of this content. Any electronic distribution shall include a reasonably conspicuous notice as follows: “SOURCE: SNL FINANCIAL LC. CONTAINS COPYRIGHTED AND TRADE SECRET MATERIAL DISTRIBUTED UNDER LICENSE FROM SNL. FOR RECIPIENT’S INTERNAL USE ONLY,” or similar language.

MIT’s contract for this content specifies the following restrictions:

“Authorized users may not:

  1. Copy, reproduce, modify, distribute, publicly display, use or disclose the Licensed Materials in any manner not expressly authorized herein.
  2. Load the Licensed Materials as any networked configuration that permits or enables access to the Licensed Materials by third parties, whether via the Internet, a network or otherwise.
  3. Allow any third parties to access or view the Licensed Materials, except for authorized excerpting and distribution of limited portions as set forth above.
  4. Distribute any interfaces or software programs comprising the Licensed Materials.
  5. Download data from the Licensed Materials with the intent of using such data as a substitute for purchasing a subscription.
  6. Use the Licensed Materials, directly or indirectly, in competition with SNL.
  7. Use the Licensed Materials as a primary source to create and/or maintain any market indexes that it publishes or distributes to third parties.
  8. Create or maintain a database from or using the information or data from the Licensed Materials.
  9. Infringe or misappropriate the Licensed Materials, or take any action inconsistent with SNL’s ownership of and rights in the Licensed Materials.”

Additional restrictions also apply for certain included content:

  • For information from the CUSIP database: you may not “publish or distribute in any medium the CUSIP Database or any information contained therein or summaries or subsets thereof to any person or entity except in connection with the normal clearing and settlement of security transactions.”
  • For Fitch credit ratings: “Reproduction of the Fitch credit ratings in any form is prohibited except with the prior written permission of Fitch.”

Also note: SNL Energy is not intended for use by walk-in visitors of the library who are not affiliated with MIT.

How to notify us about copyright concerns

The MIT Libraries are highly respectful of intellectual property rights and make every effort to ensure that we have appropriate rights to provide online access to our digital collections. Every effort is made to assess the copyright status of all materials and to ensure that the Libraries’ use is in full compliance with U.S. copyright law. In some instances, however, rights status may be difficult or impossible to determine.

If you are a rights holder and are concerned that you have found material available in MIT Libraries digital collections without your permission, and believe our inclusion of this material violates your rights (e.g. inclusion is not covered by Fair Use or another exemption to a copyright holder’s rights), please contact

When contacting us, the more information you can supply, the more responsive we can be. It is particularly helpful if you include the following:

  • Your contact information (including email address, postal address, and phone),
  • Exact URL where you found the material,
  • Details that describe the material (title, collection name, number of items, etc.),
  • The reason why you believe that your rights have been violated, with any pertinent documentation,
  • A statement that you in good faith believe that use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law, and
  • A statement that the information in your notification is accurate and that you are the rights holder or are authorized to act on behalf of the owner.

Connect to MIT SECURE wireless network

If you’re using the MIT wireless network, you’re probably seeing this message because you’re not connected to the “MIT SECURE” network. Please check the network you’re using, and change it if needed.

Having trouble connecting to MIT SECURE? See IST’s How to connect to MIT SECURE wireless.

If this doesn’t solve the problem, or if you’re not using the MIT wireless network, write to us through our Ask Us service, and we’ll help you troubleshoot. Please include the URL of this error page and information about the specific resource you were trying to access.

Error: Accessing Your Account in Barton via Touchstone

Something didn’t go quite right…

If you’re an MIT user with a Kerberos account

This probably means that you’re very new and we haven’t yet received your information in our daily loads from the MIT data warehouse. This situation is often resolved by the next data load. In the meantime, if you need help making requests or seeing what books you have checked out, or if you still can’t get access after more than a few days, please Ask Us or contact any of the MIT Libraries service desks.

If you’re a user with borrowing privileges but no Kerberos account (BLC, Borrowing Card, spouse/partner, etc.)

This probably means that you haven’t linked your Touchstone Collaboration Account to Your Account in Barton. To remedy this:

  1.  Find the email you were sent from the MIT Libraries with the subject “Barton account registration” and click on the URL in step 2 of the email. The Touchstone Collaboration Account log-in screen should load, and you can sign in with the email and password that you set up earlier. Finishing this process will actively link the two accounts together.
  2. If you can’t find that email, use the Request Access for Your Account form (be sure to indicate that you are having problems), or contact for assistance.

Some SFX links don’t go directly to the article

SFX will try to get you as close as it can to the full-text of the article. However, the structure of some of the databases and web sites only allows SFX to link to the journal’s table of contents or database’s home page, rather than directly to the article.

In this case, you’ll need to navigate through the journal issues or search for the specific article.

Brown Women Writers Project: Use restrictions

Authorized Users may reuse downloaded electronic files (HTML or SGML) or transcriptions from the Textbase for private scholarly or pedagogical purposes, such as personal research, or to include in a course web site.

Authorized Users may modify the downloaded files or transcriptions, but they shall not represent the modified files as original WWP files, and they shall provide appropriate acknowledgment of the WWP as the source. The WWP shall supply, in a public location at our web site or on request, suggested forms of acknowledgment.

Authorized Users may use downloaded files and WWP transcriptions in products intended for sale with the written permission of the WWP, and such permission shall not be unreasonably withheld. For academic projects such as scholarly editions the fee for such use will be nominal. For commercial reuse, we may charge a fee or royalty based on the anticipated distribution and price of the publication.

Licensee and Authorized Users (including the Licensee’s campus bookstore or photocopy center) may include printed Materials in course packets which will be resold within the Licensee’s institution, without separate permission from the WWP, during the term of this Agreement. Such printed Materials must include a reasonable identification of the WWP as source.

Licensee and Authorized Users may download and redeliver electronic Materials in SGML or HTML from the Textbase as long as Licensee holds a valid, current license, and as long as they maintain internal access pages which provide reasonable identification of the WWP as source and owner of the Textbase, including a link to the WWP web site.

Neither Licensee nor Authorized Users (including a campus bookstore or photocopy center) may distribute or sell downloaded files or printouts outside the Licensee’s institution.

Standard use restrictions also reply, as follows:

Use of many of these resources is governed by license agreements which restrict use to the MIT community and to individuals who use the MIT Libraries’ facilities. It is the responsibility of each user to ensure that he or she uses these products only for individual, noncommercial use without systematically downloading, distributing, or retaining substantial portions of information.

Ullmann’s Encyclopedia of Industrial Chemistry: Use restrictions

“Authorized users may download, view, copy and save to hard disk or diskette and store or print out single copies of individual articles for the Authorized Users’ own personal use, scholarly, educational, or scientific research and the Licensee’s internal business use. Authorized Users may transmit to a third party colleague in hard copy or electronically, a single article from the Electronic Encyclopedia for personal use or scholarly, educational, or scientific research or professional use or for corporate informational purposes but in no case for re-sale.” Other than as provided for above, “Authorized Users may not copy, distribute, transmit or otherwise reproduce material from the Electronic Encyclopedia; store such material in any form or medium in a retrieval system; download and/or store five or more articles from the Electronic Encyclopedia; or transmit such material, directly or indirectly, for use by an information brokerage or for systematic distribution, whether or not for commercial or non-profit use or for a fee or free of charge.”

Standard use restrictions also reply, as follows:

Use of many of these resources is governed by license agreements which restrict use to the MIT community and to individuals who use the MIT Libraries’ facilities. It is the responsibility of each user to ensure that he or she uses these products only for individual, noncommercial use without systematically downloading, distributing, or retaining substantial portions of information.