TY  - RPRT
TI  - Impact of multi-GNSS satellite coverage on 3D position estimates and reference frame definition
AU  - Furqan Ahmed
AU  - Srinivas Bettadpur
AU  - Hyung-Jin Rim
UR  - https://ntrs.nasa.gov/citations/19196495413720
ID  - 19196495413720
ER  -