- 03.03.2014 – 02.03.2019 – Alba Synchrotron Light Facility, Cerdanyola del Valles, Spain;
- 28.02.2010 – 05.03.2010 – Technische Universitat Darmstadt; Darmstadt, Germany;
- 20.07.2009 – 25.07.2009 – Laboratori Nazionali di Frascati; Frascati (Rome), Italy;
- 14.07.2004 – 07.09.2004 – DESY Summer Study Program 2004; Hamburg, Germany;
- 01.03.2004 – 14.03.2004 – The KFKI Research Institute for Particle and Nuclear Physics; Budapest, Hungary.