共 13 条
- [1] BARNOTHY JM, 1968, 128 M AAS
- [3] BOURASSA RR, IN PRESS
- [5] DOUBLE QUASAR 1548+115A,B AS A GRAVITATIONAL LENS [J]. ASTROPHYSICAL JOURNAL, 1974, 190 (03) : L105 - L108
- [8] Mattig W, 1958, ASTRON NACHR, V284, P109
- [10] REFSDAL S, 1964, MON NOT R ASTRON SOC, V128, P295, DOI 10.1093/mnras/128.4.295