@article{22472, author = "Śledziński, Janusz and Paper presented at the Int. Confer. Geodetic monitoring, geodynamics and refractometry at the beginning of the XXI century. L'viv, Ukrajine, 19 - 23 January, 1998", title = "Permanent GPS stations - the background for geodynamics studies and maintenance of geodetic coordinate systems : Current status of IGS and EUREF permanent stations in Central Europe ", year = "1998", note = "Lit., Abstr., 1 sv.", }