Publikacje Cezary Specht, Synchronized FDMA of DGPS Reference Stations for LF/MF Systems. The European Navigation Conference GNSS 2002. Kopenhaga 2002 Cezary Specht, Polish Maritime DGPS Reference Stations Coverage after the Implementation of New Frequency Net – Preliminary Results. Reports on Geodesy No 01 (61). Warszawa 2002 Cezary Specht, Availability, Reliability and Continuity in Navigation and Hydrography – terminology discussion. Annual of Navigation 4/2002. Gdynia 2002 Krzysztof Czaplewski, Cezary Specht, Territorial Determination of Base and Coast Lines by GPS Total Station. Nawigacja i Gidrografia 14/2002. Petersburg 2002 Cezary Specht, Availability of the navigational systems with the exponential distributions of lifetimes and times of failures. Proceedings of XIIth International Scientific and Technical Conference – The Part of Navigation in Support of Human Activity on the Sea. Gdynia 2002 Aleksander Nowak, Cezary Specht, DGPS Reference station coverage projecting program. Proceedings of XIIth International Scientific and Technical Conference – The Part of Navigation in Support of Human Activity on the Sea. Gdynia 2002 Aleksander Nowak, Cezary Specht, Projektowanie stref dokładności naziemnych systemów stadiometrycznych.