International registrants should be particularly aware and careful about visa requirements and should plan travel well in advance.

Visa Regulations

The visa regulations in Austria can be found on the website of the Federal Ministry Republic of Austria.

Letter of Invitation

For authors of accepted papers we can provide an invitation letter for visas.  For a letter of invitation, please send all requests to with the following Information:

name (as it appears on your passport) and mailing address
your passport ID and your date of birth
include your registration confirmation number
the title of your accepted paper
include a fax number or email address of where we can send the letter

Please note that it can take up to one week to receive the invitation letter.