February 12, 2018 Research Online: Monitoring of wide-area oscillations in presence of GPS spoofing attacks By GPS World Staff
February 9, 2018 Innovation: QZS-3 and QZS-4 join the Quasi-Zenith Satellite System By Peter Steigenberger, Steffen Thoelert, André Hauschild, Oliver Montenbruck, and Richard B. Langley
February 8, 2018 Expert Opinions: Challenges faced by multi-constellation GNSS receiver designers By GPS World Staff
