000
00250pam a2200097a 44500
082
_a
NASA
_b
TN D-6822 -
100
_a
P E Schmid
245
1
_a
Surface-refractivity measurements at NASA spacecraft tracking sites
260
_a
_b
_c
997
_a
TR9820 C
999
_c
406241
_d
406241