The registration has been prolonged from 10th to Friday, 13th Jan. 2012, but participation at the social dinner can not be guaranteed due to capacity-limitation for late registrants. The reduced fee is 330 CHF and is applicable until 15.01.2012. The normal fee is 380 CHF. Due to the large number of registrants the registration had been temporarily closed. We were able to relocate the conference to the Auditorium, so the registration could be reopened. An email will be sent after both successful registration and payment. Please give the full postal address on registration for the delivery of the proceedings. You should login with your CERN-indico account to allow submitting an abstract and modification of your registration later. If you don't have one, yet, you can register an CERN-external account using the link in the menu.