[1] Crustal motion using GNSS stations at Antarctica, KTH, Sweden period Aug 2009 - Dec 2009 under supervision of Lars Sjoberg.

[2] Tectonic at TT-zone using GNSS stations, IGiK, Poland period Mar 2011 - May 2011 under supervision of Jan Cisak.

[3] GNSS receivers metrological parameters estimation, IGiK, Poland period Jan 2012 - May 2012 under supervision of Jan Cisak.

[4] GOCE gravaty field validation over Poland, IGiK, Poland period Nov 2011 - Mar 2012 under supervision of Jan Krynski.

[1] Vertical gravity gradient determination at the sites of modernized Polish gravity control, IGiK, Poland period 2012 - 2013 under supervision of Przemek Dekowski and Jan Krynski.

[2] Contribution of the GOCE-based gravity field modelling to local geoid determination, IGiK, Poland period 2012 - 2014 under supervision of Jan Krynski.