共 6 条
[1]
HAKURA Y, 1965, REP IONOS SPACE RES, V19, P121
[2]
HAKURA Y, 1964, REP IONOS SPACE RES, V18, P345
[3]
HULTQVIST B, 1958, ARK GEOFYS, V3, P63
[4]
MCNISH AG, 1936, TERRESTRIAL MAGNETIS, P37