[Beavan, J. (2005). Noise Properties of Continuous GPS Data from Concrete Pillar Geodetic Monuments in New Zealand and Comparison with Data from U.S. Deep Drilled Braced Monuments. J. Geophys. Res., 110, B08410, doi:10.1029/2005JB00364210.1029/2005JB003642]Search in Google Scholar
[Gerhatova, L., Hefty, J., Papco, J. & Minarikova, M. (2015). Pillar Monitoring of GNSS Permanent Station MOP2. In Družicové metody v geodézii a katastru: sborník referátů ze semináře s medzinárodní účastí. Brno, ČR, 5. 2. 2015. 1. vyd. Brno: ECON, 2015, pp. 13-18. ISBN 978-80-86433-59-2 (in Slovak) ]Search in Google Scholar
[Gerhatova, L., Hefty, J., Papco, J. & Minarikova, M. (2015). Displacements of GNSS Antenna Position due to Thermal Bending of Pillar Monument. In EUREF Symposium 2015: Leipzig, Germany, 3. - 5. 6. 2015. Leipzig: Federal Agency for Cartography and Geodesy ]Search in Google Scholar
[Haas, R., Bergstrand, S. & Lehner, W. (2013). Evaluation of GNSS Monument Stability. In Altamimi, Z., Collieux, X. (eds). Reference Frames for Applications in Geosciences. International Association of Geodesy Symposia, Vol 138, pp 45-50. doi:10.1007/978-3-642-32998-2_810.1007/978-3-642-32998-2_8]Search in Google Scholar
[Hefty, J. & Gerhatova, L. (2014). Using GPS Multipath for Snow Depth Sensing - First Experience with Data from Permanent Stations in Slovakia. Acta Geodynamica et Geomaterialia, 11 (1), pp. 53-63. doi:10.13168/AGG.2013.005510.13168/AGG.2013.0055]Search in Google Scholar
[Hefty, J. (2004). Global Positioning System in Four-dimensional Geodesy, p. 113. Bratislava, Slovak University of Technology (in Slovak) ]Search in Google Scholar
[Lidberg, M. & Lilje, M. (2007). Evaluation of Monument Stability in the SWEPOS GNSS Network using Terrestrial Geodetic Methods - up to 2003. LMV-rapport 2007:10. ISSN 280-5731. Retrieved from http://www.lantmateriet.se ]Search in Google Scholar
[Williams, S. D. P., Bock, Y., Fang, P., Jamason, P., Nikolaidis, R., Prawirodirdjo, L., Miller, M. & Johnson, D. (2004). Error Analysis of Continuous GPS Position Time Series. J. Geophys. Res., 109, B03412, doi:10.1029/2003JB00274110.1029/2003JB002741]Search in Google Scholar
[Leica Nivel220: Instruction manual]Search in Google Scholar