Dear Dr. van Albada, please group the talks of the Workshop on Automatic Differentiation into two sessions as follows: Session 1 (more application-oriented): Bartlett, Kim, Kowarz, Sandu Session 2 (more tool-oriented): Kharche, Hascoet, Strout, Kreaseck In this context, I would also like to remind you that a non-conflict of those sessions with the Workshop "Advances in Parameter Estimation in Computational Science " http://www.lanl.gov/orgs/ees/iccs/ would be a good thing, as I expect that quite a few attendees of our workshop (myself included) would like to attend this workshop as well. Best regards, Chris Bischof -- Prof. Christian Bischof, Ph.D. Institute for Scientific Computing and Center for Computing and Communications RWTH Aachen University Seffenter Weg 23, 52074 Aachen, Germany Tel. +49-241-8029110, Fax +49-241-8022241 bischof@rz.rwth-aachen.de <mailto:bischof@rz.rwth-aachen.de>, www.sc.rwth-aachen.de <http://www.sc.rwth-aachen.de/>, www.rz.rwth-aachen.de <http://www.rz.rwth-aachen.de/>