共 11 条
- [1] BRUNNER W, 1945, ASTR MITT ZURICH, V145
- [2] BRUNNERHAGGER W, 1941, ASTRON MITT ZURICH, V140, P556
- [3] OPPENHEIM S, 1928, SITZBER AK WISS 2A, V137, P134
- [5] The mathematical characteristics of sunspot variations [J]. ASTROPHYSICAL JOURNAL, 1938, 88 (04) : 385 - 407
- [6] WALDMEIER M, 1948, Q B SOLAR ACTIVITY, V78
- [7] WALDMEIER M, 1946, ASTR MITT ZURICH, V148
- [8] WALDMEIER M, 1948, Q B SOLAR ACTIVITY, V80
- [9] WALDMEIER M, 1947, ASTR MITT ZURICH, V150
- [10] WALDMEIER M, 1947, Q B SOLAR ACTIVITY, V77