This works for me, however, instead of looking for the device `TPPS/2 Elan Trackpoint`, I had to use the id of `TrackPoint Keyboard 2`. The downside of this fix is that pasting with the middle button does not work anymore.
M. Coscia, S. Rinzivillo, F. Giannotti, and D. Pedreschi. Proceedings of the 2012 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012), page 248--252. IEEE Computer Society, (2012)
J. Yuan, Y. Zheng, and X. Xie. Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining, page 186--194. ACM, (2012)