共 14 条
- [1] Duncan J.C., 1922, PASP, V34, P290, DOI 10.1086/123221
- [2] A spiral nebula as a stellar system Messier 33 [J]. ASTROPHYSICAL JOURNAL, 1926, 63 (04) : 236 - 274
- [4] MADORE BF, 1971, THESIS U TORONTO
- [6] ROSINO L, 1973, ASTRON ASTROPHYS, V22, P461
- [7] ROSINO L, 1973, ASTRON ASTROPHYS, V22, P453
- [10] SCHWEIZER F, 1974, 1974 C DYN SPIR GAL