- 28th – 29th April 2009: Research visit at the of the Austrian Academy of Sciences and the , University of Vienna, Austria
- 6th – 11th April 2008: Research visit at the Physics Division, Theory Group, Argonne National Laboratory, Argonne, IL, USA
- 2nd – 5th April, 2008: Research visit at the Department of Physics, Kent State University, Kent,Ohio, USA
- 6th – 12th December 2006: Research visit at the Institut für Kernphysik of the TU Darmstadt, Darmstadt, Germany
- 29th April – 13th May 2006: Research visit at the Physics Division, Theory Group, Argonne National Laboratory, Argonne, IL, USA
- 17th May – 23rd June 2005: Research visit at the IPPP, University of Durham, Durham, UK.
- 12th – 15th December, 2004: Research visit at Triumf, Vancouver, Canada
- 14th – 18th November, 2004: Research visit at the Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa, USA
- 12th – 16th October, 2004: Research visit at the Department of Physics, Kent State University, Kent,Ohio, USA
- 3rd – 8th September, 2004: Research visit at the Institut für Theoretische Physik, Universität Tübingen, Tübingen, Germany
- 2nd – 23th October, 2002: Research visit at the Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa, USA
- 7th – 26th March, 2002: Research visit at the Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa, USA
- 9th – 28th February, 2001: Research visit at the Max-Planck-Institut für Kernphysik , Heidelberg, Germany
- 22nd August – 18th September, 1999: Research visit at the Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen, Hungary.
- 2nd – 14th December, 1998: Research visit at the Institut des Sciences Nucléaires, Grenoble, France.