International participants should be particularly aware and careful about visa requirements & regulations and should plan travel well in advance. Before traveling, it is recommended that you check with the Austrian Representative Office in your country for an updated information.

If you require a Visa Letter of Invitation from the EWSN organization committee, please send an email with the subject “Invitation letter request for EWSN 2022” to containing the following information:




Birthday and place

Passport Number:

Date of issue of the Passport:

Expiration date of the passport:

Country of residence:

Contact address:

Phone Number:

E-mail address:

Please note: In case you are an author you need to specify title and number of the accepted paper. If you are a conference attendee without being an author you need to successfully register for EWSN 2022 and have paid the registration fees in full before we can issue a Visa Letter of Invitation. It must be understood that these letters are only intended to help participants to obtain a visa or to raise travel funds and do not commit the Conference Organizers to any financial nor insurance obligations.