共 18 条
- [1] AKASOFU S, 1956, REP IONOS RES JAPAN, V10, P227
- [3] Dungey J.W., 1955, PHYS IONOS, P229
- [4] DUNGEY JW, 1954, 69 PENNS STAT U SCI
- [5] DUNGEY JW, 1954, 57 PENNS STAT U SCI
- [6] ELVEY CT, 1948, GASSIOTT COMMITTEE R, P16
- [7] FORBUSH SE, 1956, J GEOPHYS RES, V61, P364
- [8] Hatakeyama H., 1938, GEOPHYS MAG, V12, P189
- [9] Hatakeyama H., 1938, GEOPHYS MAG, V12, P173
- [10] KATO Y, 1957, GEOPHYSICS, V8, P157