000 00368nam a2200133Ia 4500
999 _c68164
_d68164
005 20230705135450.0
008 180710s9999 xx 000 0 und d
020 _a117132
082 _a538.767
_bION
_223
245 _aIONOSPHERIC absorption measurements made at the Ceylon Institute of Scientific a
260 _aColombo
_b[s.n.]
_c0
300 _a[140 p.]
942 _cS