共 21 条
[11]
KRAUSE F, 1971, SOLAR MAGNETIC FIELD, P770
[17]
LENGTH OF GEOMAGNETIC POLARITY INTERVALS
[J].
JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY,
1969, 21 (03)
:701-&
[18]
Niitsuma N., 1971, TOHOKU U SCI REPT 2, V43, P1