共 13 条
- [1] Barbieri C., 1970, Memorie della Societa Astronomica Italiana, V41, P271
- [2] BARBIERI C, 1968, 143 OSS PAD PUBL
- [4] IRIARTE B, 1957, B OBS TONANTZINTAL T, P3
- [5] LUYTEN WJ, 1966, SEARCH FAINT BLUE ST
- [6] LUYTEN WJL, 1961, SEARCH FAINT BLUE ST
- [7] Markarian B. E., 1967, ASTROPHYSICS+, V3, P24
- [8] Perek L., 1967, CATALOGUE GALACTIC P
- [9] PURGATHOFER AT, 1969, LOWELL OBSERV B, P98