共 24 条
- [1] ASHBROOK J, 1955, SKY TELESCOPE, V14, P380
- [2] CAMPBELL WW, 1896, PUB ASP, V8
- [3] CAMPBELL WW, 1918, PUB ASP, V30, P133
- [5] KUIPER GP, UNPUB, V41
- [6] KUIPER GP, 1952, ATMOSPHERES EARTH PL, P389
- [7] KUIPER GP, 1954, EARTH PLANET, P146
- [8] 1914, POP ASTR, V22
- [9] 1909, J BAA, V20
- [10] 1916, MEM BAA, V20, P32