M. Yoon, D. Kim, J. Lee, and S. Pullen, Multidimensional Verification Methodology of Ionospheric Gradient Observations during Plasma Bubble Events in the Brazilian Region, Proc. of the ION PNT 2015

T. Fujiwara and T. Tsujii, GBAS Availability Assessment and Modelling of Ionospheric Scintillation Effects, Proc. of the ION PNT 2015

S. Lee and . Pullen, Evaluation of GPS L5, Galileo E1 and Galileo E5a Performance in Flight Trials for Multi Frequency Multi Constellation GBAS, Proc. of the ION GNSS+ 2015

M. Circiu, M. Felux, S. Thölert, F. Antreich, M. Vergara et al., Evaluation of GPS L5 and Galileo E1 and E5a Performance for Future Multi Frequency and Multi Constellation GBAS, Proc. of the ION ITM 2015

M. Stanisak, A. Lipp, and T. Feuerle, Possible VDB Formatting for Multi-Constellation / Multi-Frequency GBAS, Proc. of the ION GNSS+ 2015

C. Faa-1999, . For, . Of, . Iii, . Minima et al., AC 120-28D [8] Boeing presentation at the 16th International GBAS Working Group Airbus presentation at the 16th International GBAS Working Group Atlantic City, USA [10] DLR presentation at the 16 th International GBAS Working Group Minimum operational performance standards for GPS local area augmentation system airborne equipment [12] Eurocae ED-114A (2013), Minimum Operational Performance Standards Specification for Global Navigation Satellite Ground Based Augmentation System Ground Equipment to Support Category I Operations, Macabiau " Evolution of Corrections Processing for the MC/MF Ground Based Augmentation System (GBAS) Proc. of the ION ITM 2015, 2008.