Additional authentication is sometimes required with VPN...

Please note there are a few resources where using VPN or having an MIT IP address is not enough - you must use MIT certificates or your Kerberos login to get access. Using Vera or Barton or our shortcut "get" URLs will always make sure this authentication gets invoked (bookmarks and Googling will usually NOT work).

These exceptions are usually noted in Vera, but below are some notable resources that have this exception:

ACS: http://libraries.mit.edu/get/acsjournals

APS Journals: http://libraries.mit.edu/get/aps

IEEE and IET: http://libraries.mit.edu/get/ieee

JSTOR: http://libraries.mit.edu/get/jstor

Scitation platform by the American Institute of Physics (AIP): http://libraries.mit.edu/get/aipjs
In addition to their own content, the AIP hosts the publications of a number of other organizations on the Scitation platform as well:

• Acoustical Society of America
• AIP: http://libraries.mit.edu/get/aipjs
• ASCE: http://libraries.mit.edu/get/asceconf
• ASME: http://libraries.mit.edu/get/asme
• ECS: http://libraries.mit.edu/get/ecsdlib
• Society for Industrial and Applied Mathematics
• SPIE: http://libraries.mit.edu/get/spie
• and more, noted on their records in Vera