共 19 条
- [1] BABCOCK HW, 1958, ASTROPHYS J SUPPL 3, V30, P201
- [2] BINNENDIJK L, 1943, B ASTRON I NETH, V10, P9
- [3] BLITZSTEIN W, 1958, PRESENT FUTURE TELES
- [4] GAPOSCHKIN S, 1937, 421 HARV CIRC
- [5] GOEDICKE V, 1938, PUBL U MICHIGAN, V8, P1
- [7] LARSSONLEANDER G, 1959, ARK ASTRON, V27, P301
- [8] LARSSONLEANDER G, 1957, ARK ASTRON, V2, P135