@ARTICLE{Jaroslaw_Bosy_Reference_2015, author={Jaroslaw Bosy and Krynski, Jan}, volume={vol. 64}, number={No 2}, journal={Geodesy and Cartography}, howpublished={online}, year={2015}, publisher={Polska Akademia Nauk/ Komitet Geodezji Polskiej Akademii Nauk; Polish Academy of Sciences / Commitee on Geodesy Polish Academy of Sciences}, abstract={The summary of research activities concerning reference frames and reference networks performed in Poland in a period of 2011–2014 is presented. It contains the results of research on implementation of IUGG2011 and IAU2012 resolutions on reference systems, implementation of the ETRS89 in Poland, operational work of permanent IGS/ EUREF stations in Poland, operational work of ILRS laser ranging station in Poland, active GNSS station networks in Poland, maintenance of vertical control in Poland, maintenance and modernization of gravity control, and maintenance of magnetic control in Poland. The bibliography of the related works is given in references.}, type={Artykuły / Articles}, title={Reference frames and reference networks}, URL={http://ochroma.man.poznan.pl/Content/98372/PDF/Art-1_Bosy_Krynski.pdf}, doi={10.1515/geocart-2015-0011}, keywords={reference system, reference frame, ETRS89, vertical control, gravity control, magnetic control}, }