000
00259nam a2200109 4500
008
160616s 000 0
245
_a
Radio waves in the ionosphere
100
_a
Budden, K.G.
500
_a
B9:95 K11
942
_c
BK
_2
BK10190
080
_a
523.4 BUD
999
_c
10190
_d
10190