DAVIS, D, WEISS, MA, DAVIES, K
et al. (1991). IMPROVING GPS TIME TRANSFER ACCURACY WITH THE NIST IONOSPHERIC MEASUREMENT SYSTEM
.
253-268.
DAVIS, D, WEISS, MA, DAVIES, K et al. (1991). IMPROVING GPS TIME TRANSFER ACCURACY WITH THE NIST IONOSPHERIC MEASUREMENT SYSTEM
. 253-268.