共 3 条
[1]
NEGATIVE IONS IN LOWER IONOSPHERE - MASS-SPECTROMETRIC MEASUREMENT
[J].
JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS,
1971, 33 (08)
:1169-+
[2]
FOLKESTAD K, 1970, NDRE59 REP
[3]
MASS SPECTROMETRIC MEASUREMENTS OF POSITIVE IONS AT ALTITUDES FROM 64 TO 112 KILOMETERS
[J].
JOURNAL OF GEOPHYSICAL RESEARCH,
1965, 70 (15)
:3687-+